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quester [9]
3 years ago
12

Simplify the algebraic expression 2(a + 2ab) + 4 - ab and find its value when a = 4 and b = -2

Mathematics
1 answer:
WARRIOR [948]3 years ago
7 0

Step-by-step explanation:

2(a + 2ab) + 4 - ab

= 2a + 4ab + 4 - ab

= 3ab + 2a + 4.

When a = 4 and b = -2,

we have 3ab + 2a + 4

= 3(4)(-2) + 2(4) + 4 = -24 + 8 + 4 = -12.

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