Question

$21x = 196 - x {}^{2}$
by factorisation method​

Answer 1

Answer:

apko doughnut aap ka istmal karna cahiye

Answer 2

Answer:

21x=196-x²

=21x-196+x²

=x²+21x-196

=x²+28x-7x-196

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

=(x+28)(x-7) Ans.

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