Math, asked by Hasanat2671, 1 year ago

Find the value of the polynomial 5x power 2 -3x+7 , x=-2.

Answers

Answered by siddhizawar

0

Answer:

Step-by-step explanation:

X=-2

X-2=0

X=2

5x2-3x2+7=0

5 (2)2-3 (2)+7=0

5 (4)-6+7=0

20-6+7

20+1

21 is the answer

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