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HACTEHA [7]
3 years ago
12

Evaluate each expression when a = -4 and b = 31.) ab2.) 2a + 3b 2.) 2(a - b)​

Mathematics
1 answer:
Svet_ta [14]3 years ago
3 0

1) -12

ab is a times b. We plug in the numbers (-4)*(3) which equals -12.

2) 1

We plug in -4 for a, and 3 for b into the equation.

We get 2(-4) + 3(3)

2*-4 is -8. 3*3 is 9. We add them both, and -8+9 equals 1.

3) -14

We plug in -4 for a, and 3 for b into the equation.

2(-4-3)

-4-3 is -7. -7*2 equals -14.

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