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Question 1. Write the following quadratic equations in the standard form and point out pure quadratic equations. $ \pmb{ (i). \;\;\;\;\; (x + 7) (x – 3) = -7} $ Solution: The given quadratic equation is $$ (x + 7) (x – 3) = -7 \;\;\;\;\; (i) $$ Multiplying the expressions $ (x + 7) $ and $ (x – ...

In this method, write the quadratic equation in the standard form as ax2 + bx + c = 0          (i) If two numbers r and s can be found for the equation (i) such that r + s = b and rs = ac then ax2 + bx + c can be factorized into two linear factors. Example Solve the ...