Question

21x=196 -x^2

Solve the following quadratic equation using factorisation method

Answer 1

Step-by-step explanation:

21x = 196 - x^2

21x-196+x^2

x^2 + 21x - 196 = 0

x^2 + 28x - 7x - 196 = 0

x(x+28) - 7(x + 28) = 0

(x-7) (x+28) = 0

hope it helps......

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Answer 2

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