3 years ago

PLZ HELP IM BEING TIMED GIVING BRAINLIEST Using the square root property solve (a - 10)² = 121

Mathematics

2 answers:

olchik [2.2K]3 years ago

8 0

Answer:

Step-by-step explanation:

We know that the sqaure root of 121 = 11.

So, A - 10 = 11

=> A = 21

Alex3 years ago

3 0

Answer:

a = -1 or a = 21

Step-by-step explanation:

take square root of each side to get:

a - 10 = $\sqrt{121}$

a - 10 = 11; a = 21

a - 10 = -11; a = -1

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