Question

Find the value of following polynomial at indicated value of variable
p(y)=5y square-3y+7a for y =-1 and 1

Answer 1

$Given \: p(y) = 5y^{2} - 3y + 7$

$i ) If \: y = -1 \: then \: value \: of \: p(-1) \\= 5(-1)^{2} - 3(-1) + 7 \\= -5 + 3 + 7\\= -5+10 \\= 5$

$ii ) If \: y = 1 \: then \: value \: of \: p(1) \\= 5(1)^{2} - 3(1) + 7 \\= 5 - 3 + 7\\= 2+7 \\= 9$

Therefore.,

$\green { p(-1) = 5 \: and \: p(1) = 9 }$

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Answer 2

Step-by-step explanation:

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