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Help me solve these two problems! Show the work

Help me solve these two problems! Show the work-example-1
User Klefevre
by
7.9k points

1 Answer

6 votes

Answer:

see explanation

Explanation:

2

4x² + 64 ← factor out the common factor of 4 from each term

= 4(x² + 16)

3

(a - 10)² = 121 ( take square root of both sides )

a - 10 = ±
√(121) = ± 11 ( add 10 to both sides )

a = 10 ± 11

then

a = 10 - 11 = - 1

a = 10 + 11 = 21

User Jksdua
by
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