20-04-2021
Mathematics

contestada

Help please
Evaluate the expression when a = -9 and b = - 4.
a? - 2(b + 12)

Help please Evaluate the expression when a 9 and b 4 a 2b 12 class=

Respuesta :

smithkekoal970 smithkekoal970

20-04-2021

Step-by-step explanation:

a^2 - 2(b + 12)

(-9)^2 - 2(-4 + 12)

81 - 2 (-4 + 12)

79 (-4 + 12)

79 × -4 + 79 × 12

-316 + 948

632

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