Question

find the value of polynomial 5xcube-3xsquare+7 x=1 x=-1 x=2
pls answer fast it's urgent​

Answer 1

Step-by-step explanation:

the value of the polynomials we know that if we multiply -ve value for even time we get positive value and if we do for odd times we get - ve value

1)x=1

5(1)^3-3(1)^2

answer is 2

2)x=-1

5*-1-3*1

-8

3)x=2

5*8-3*4

28

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