Question

IF Y=2 find the value of
-2y³-3y²+4y+7​

Answer 1

Answer:

answer is

-13

Step-by-step explanation:

-2×8=-16

-3×4=-12

4×2=8

7=7

-16-12+8+7

-28+15

-13

Answer 2

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put the value of y=2 in -2y³-3y²+4y+7

$= - 2 {(2)}^{3} - 3 {(2)}^{2} + 4 \times 2 + 7 \\ = - 2 \times 8 - 3 \times 4 + 8 + 7 \\ = - 16 - 12 + 15 \\ = - 28 + 15 = - 13$