Question

find the value of expression 7×^2-5×+7 at ×=2​

Answer 1

7x² - 5x + 7 { x = 2 }

p(x) = 7x² - 5x + 7

p(2) = 7 ( 2 )² - 5 ( 2 ) + 7

p(2) = 7 ( 4) - 10 + 7

p(2) = 28 - 10 + 7

p(2) = 25

I hope it help you...

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