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SPEED NOTES | CBSE | CLASS 7 | MATHEMATICS

Integers

Fractions and Decimals

Data Handling

Simple Equations

Lines and Angles

The Triangle and its Properties

Congruence of Triangles

Comparing Quantities

Rational Numbers

Practical Geometry

Perimeter and Area

Algebraic Expressions

Exponents and Powers

Symmetry

Visualising Solid Shapes

When $a \ne 0$, there are two solutions to $ax^2 + bx + c = 0$ and they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$ <math...

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