Question

c) Find the value of the polynomial 5x - 4X2 + 3 at
(i) x = 0 (ii)x = -1​

Answer 1

Answer:

i)1

ii)-6

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Step-by-step explanation:

Answer 2

Answer:

$given \: expression \\ \\ 5x - 4 {x}^{2} + 3 \\ \\ when \: x = 0 \\ \\ 5(0) - 4( {0)}^{2} + 3 \\ \\ = 0 - 4 \times 0 + 3 \\ \\ = 0 - 0 + 3 \\ \\ = 3 \\ \\ when \: x = - 1 \\ \\ 5( - 1) - 4( - 1) ^{2} + 3 \\ \\ = - 5 - 4(1) + 3 \\ \\ = - 5 - 4 + 3 \\ \\ = - 9 + 3 \\ \\ = - 6$

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