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kirill115 [55]
3 years ago
11

Simplify (ab)2 + (b3 - a2) if a = -2 and b = 4

Mathematics
2 answers:
Greeley [361]3 years ago
8 0

Answer:

124

Step-by-step explanation:

(ab)^2 + (b^3 - a^2)

Let a = -2  and b = 4

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

Parentheses first

(-8)^2 + (4^3 - (-2)^2)

Then the exponents in the parentheses

(-8)^2 + (64 - 4)

Subtract in the parentheses

(-8)^2 + (60)

Exponents

64 + 60

124

LenKa [72]3 years ago
4 0

Step-by-step explanation:

(-2*4)2+(4×3--2×2)

(-8)2+(12--4)

-16+16

=0

hope this helps

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Answer:

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Step-by-step explanation:

Let the three numbers be a, b and c.

Equation 1: a + b + c = 12

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a - 1 + 10 = 12

a = 3

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