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3 years ago

?????evauate?????????

Mathematics

2 answers:

miskamm [114]3 years ago

7 0

Answer:

Step-by-step explanation:

Substitute a = - 6 into the expression, that is

a² + 7a + 8

= (- 6)² + 7(- 6) + 8 = 36 - 42 + 8 = - 6 + 8 = 2

sergij07 [2.7K]3 years ago

4 0

Answer:

Step-by-step explanation:

${a}^{2} + 7a + 8$

Substitute

$a = - 6$

in the above equation to get:

${( - 6)}^{2} + 7( - 6) + 8$

Simplify:

$36 + ( - 42) + 8$

$36 - 42 + 8$

$- 6 + 8$

$2$

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