Question

Find the value of the polynomial 2y to the power 2

– 3y – 4 at y=5.

Answer 1

1/ 10 ( to the power 17)

Answer 2

$\underline{ \underline{ \bold{ \red{ \: \: \:QUESTION \: \: \: }}}}$➡

$\bold{Find \: \: the \: \: value \: \: of \: \: the \: \: polynomial} \\ \bold{2y {}^{2} - 3y -4 \: \: \: \: \: if \: \: y = 5 \: . }$

$\underline{ \underline{ \bold{ \red{ \: \: \: SOLUTION\: \: \: }}}}$➡

$\underline{ \bold{ \: Given \: \: : \: \: }} \: \: \: \: \: \: \: \: \: \boxed{ \bold{y = 5}} \\ \\ \underline{ \bold{ \: To \: \: find \: \: : \: \: }} \: \: \: \: \bold{2y {}^{2} - 3y - 4 =? }$

$\underline{ \bold{Putting \: \: the \: \: value \: \: of \: \: \: \underline{ \: y} \: \: \: in \: \: the \: \: polinomial,}} \\ \underline{\bold{We \: \: get \: \: : }} \\ \\ \\ \bold{2y {}^{2} - 3y - 4 } \\ \\ \bold{ = 2 \times (5) {}^{2} - 3 \times (5) - 4 } \\ \\ \bold{ = 2 \times 25 - 15 - 4} \\ \\ \bold{ = 50 - 19} \\ \\ \bold{ = 31}$

$\underline{ \underline{ \bold{ \red{ \: \: \: ANSWER\: \: \: }}}}$➡

$\boxed{\boxed{ \bold{ \purple{ \: \: \: \: 2y {}^{2} - 3y - 4 = \underline{ \underline{ \: \: 31 \: \: }}\: \: \: }}}}$

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✝$\mathfrak{\red{THANKS...}}$✝