21x=196-x square
please solve this
Answers
Answered by
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Step-by-step explanation:
21x=196-x²
x²+21x-196=0
x²+7x-28x-196=0
x(x+7)-28(x+7)=0
(x+7)(x-28)=0
X=-7 or X=28
Hope this helps!!!
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