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What is the value of 4a3 – 2b2 + 5 when a = 3 and b = −2?

What is the value of 4a3 – 2b2 + 5 when a = 3 and b = −2?
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What is the value of 4a3 – 2b2 + 5 when a = 3 and b = −2?

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User Willbill
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2 Answers

4 votes

4a3 – 2b2 + 5

= 4 * 3^3 - 2 * (-2)^2 + 5

= 4 * 27 - 2 * 4 + 5

= 96 - 8 + 5

= 93


answered
User Shaun Luttin
by
9.4k points
3 votes
4a(3)-2b(2)+5
4(3)(3)-2(-2)(2)+5
12(3)-(-4)(2)+5
36-(-8)+5
44+5
49
The answer is 49.
answered
User Alexandru Dranca
by
8.2k points
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