Question

If A+A*A=12 Than how much A=?

Answer 1

The values of A are -4 and 3.

Step-by-step explanation:

The expression given is:

A + A² = 12

Solution:

The expression is quadratic in nature.

That is:

A² + A - 12 = 0

Factorize the expression by splitting the middle term as follows:

A² + A - 12 = A² + 4A - 3A - 12

              0 = A (A + 4) - 3 (A + 4)

              0 = (A + 4) (A - 3)

If A + 4 = 0, then the value of A is -4.

If A - 3 = 0, then the value of A is 3.

Thus, the values of A are -4 and 3.