5 मिनट का पाठ
Equations: what they are and how to solve them
What an equation is, what its solution means, and how to solve equations step by step — from one-step equations to fractions and two variables.
हर बीजगणित प्रश्न कुछ ही चालों पर टिका है: सरल करें, दोनों ओर एक जैसा करें, और जाँचें। ये पाठ हर चाल हल किए गए उदाहरणों से सिखाते हैं, जिनके उत्तर Sumzo का गणित इंजन जाँचता है।
18 लेख
5 मिनट का पाठ
What an equation is, what its solution means, and how to solve equations step by step — from one-step equations to fractions and two variables.
1 मिनट का पाठ
Use inverse operations to get the unknown on its own, keep the equation balanced, and always check your answer.
2 मिनट का पाठ
Factorising, completing the square, the quadratic formula and the discriminant — and how to tell which method to use.
1 मिनट का पाठ
What slope measures, how to find it from two points, and how to write a line as y = mx + b.
4 मिनट का पाठ
How to simplify radicals by taking out perfect-square factors, what simplest radical form means, and how to simplify radical expressions — with checked examples.
2 मिनट का पाठ
What a rational equation is, how to solve rational equations by multiplying by the lowest common denominator, and why every answer must be checked.
3 मिनट का पाठ
The steps for factoring polynomials — common factor first, then two, three or four terms — with worked examples, each checked by multiplying back out.
3 मिनट का पाठ
Solving inequalities like equations — with one extra rule — and showing the answer on a number line, in interval notation and as a shaded region.
2 मिनट का पाठ
A solution is a value that makes an equation true. How to check one, and examples with one solution, no solution, all real numbers and two solutions.
2 मिनट का पाठ
A five-step method for solving word problems, the key words that turn into maths, and worked examples — ages, consecutive numbers, discounts and tickets.
2 मिनट का पाठ
Three ways to graph an equation — a table of values, slope and intercept, and key points of a parabola — with worked examples and how to match a graph to its equation.
3 मिनट का पाठ
Function notation, how to graph a function from its formula, how to find its domain and range, and how composite functions such as f(g(x)) work.
2 मिनट का पाठ
What a polynomial is, how to simplify and expand polynomials, and how to solve polynomial equations by factoring — with checked examples.
2 मिनट का पाठ
What rational expressions are, their excluded values, and how to simplify, multiply, divide, add and subtract them — then solve rational equations.
2 मिनट का पाठ
A literal equation has several letters. Solving it means isolating one of them — the same moves as an ordinary equation, with letters instead of numbers.
1 मिनट का पाठ
How to simplify the following kinds of expression: like terms, brackets, exponents and complex fractions (a fraction inside a fraction), each with checked examples.
1 मिनट का पाठ
The questions that say “find x” — equations, angles on a line, triangle angles, Pythagoras and similar shapes — and the one idea behind all of them.
2 मिनट का पाठ
How to find the solution to a system of equations three ways, then how to graph a system of inequalities: boundary lines, shading and the overlap.
हल करें। खोलें: । घटाएँ: । 8 जोड़ें: , इसलिए ।
जाँच: और । दोनों पक्ष बराबर हैं, इसलिए सही है।
इसे Sumzo बीजगणित कैलकुलेटर में लिखें: यह हर चरण दिखाता है, और इसका गणित इंजन उत्तर जाँचता है। यहाँ के पाठ उन चरणों के पीछे के तरीके सिखाते हैं।
अपना उत्तर मूल समीकरण में रखें। अगर दोनों पक्ष बराबर आएँ तो उत्तर सही है — नहीं तो वह पहली पंक्ति खोजें जहाँ आपके हल ने समीकरण बदल दिया।
व्यंजकों को सरल करना और एक और दो चरण वाले समीकरण हल करना। आगे का सब कुछ — द्विघात, फलन, निकाय — इन्हीं पर टिका है।