Q.2 Find the value at x=-5
x3 + 4x2 + 3x – 21
O A-50
O B-61
O C61
O D 50
Answers
Answered by
0
Answer:
-43
Step-by-step explanation:
-5(3)+8+3(-5)-21
-15+8-15-21
-15-15-21+8
-51+8
-43
Answered by
0
Step-by-step explanation:
x³+4x²+3x-21
x=-5
(-5)³+4(-5)²+3(-5)-21
-125+4×25+3×-5-21
-125+100+(-15)-21
-125+100-15-21
-25-15-21
= -61 [Answer (B)]
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