Question

find the value of polynomial 5x-4x²+3 at i x=0 ii x=-1 iii x=2​

Answer 1

Step-by-step explanation:

1)5x-4x²+3

x=0

=>0-0+1=3

2)x=-1

=>-5-4+3=-6

3)x=2

=>10-16+3

=>-3

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Answer 2

Answer:

$\\ \large{ \underline{ \boxed{ \sf{ \blue{value \: \: of \: \: 5x - 4x {}^{2} + 3 \: \: at \: \: x = 0}}}}} \\ \\ \\ \implies \tt \: p(0) = 5(0) - 4 {(0) }^{2} + 3 \\ \\ \\ \implies \tt \: 0 - 0 + 3 \\ \\ \\ \implies \bf \: 3 \\ \\ \\ \large{ \underline{ \boxed{ \sf{ \green{value \: \: of \: \: 5x - 4x {}^{2} + 3 \: \: at \: \: x = - 1}}}}} \\ \\ \\ \implies \tt \: - 5 - 4 + 3 \\ \\ \\ \implies \tt \: - 7 + 3 \\ \\ \\ \implies \bf \: - 6 \\ \\ \\ \large{ \underline{ \boxed{ \sf{ \orange{value \: \: of \: \: 5x - 4x {}^{2} + 3 \: \: at \: \: x = 2}}}}} \\ \\ \\ \implies \tt \: 5(2) - 4 {(2)}^{2} + 3 \\ \\ \\ \implies \tt \: 10 - 16 + 3 \\ \\ \\ \implies \tt \: 13 - 16 \\ \\ \\ \implies \bf \: - 3$