Theo completed the following steps to simplify the expression -3((5 - a) - 2a(-3 + 4a)). -3(5) - 3(-a) – 3(-2a)(-3(-3) – 3(4a))
-15 + 3a + 6a(9 - 12a)
-15 + 3a + 54a - 72a2
Explain why Theo's solution is incorrect. Then show how to correctly simplify the expression.

step-by-step explanation:

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y=x+9

?

step-by-step explanation:

no solution

step-by-step explanation:

there is not enough information in the problem to solve.

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation: