The value of the polynomial 7x³+ 3x² - 4, when x = - 2 is:
OPTIONS÷
(A) 48
(B) 46
(C) -48
(D) -46
Answers
Answered by
0
Answer:
option C . -48
Step-by-step explanation:
Answered by
1
Answer:
the answer is -72
Step-by-step explanation:
Putting the value of x = -2 in the given equation
=7x^3 + 3x^2 - 4
=7(-2^3) + 3(-2^2) - 4
=7(-8) + (-12) - 4
= -56 - 12 -4
= -68 - 4
= -72
Therefore, the value of the given equation is -72
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