Question

Solve for a. 3a²=147
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a= or a=

Answer 1

The value of a = 7, or the value of a = -7

Explanation:

Here, the given expression is :
`3a^(2)   = 147`

Now, we need to simplify for the value of a.

Solving the above equation, we get

`3a^(2)   = 147`

⇒
`a^(2)   =(147)/(3)   = 49`

or,
`a^(2) =  49`

⇒
`a = √(49)`

⇒ a = + 7, or a = -7

Hence, the value of a = 7, or the value of a = -7