Question

How do you solve 4a2−144=0?

Answer 1

4a^2-144=0

4a^2=144

a^2=36

a=root 36

=6

Answer 2

Answer : a = 18

Step by step explanation :

$4a \times 2 - 144 = 0$

Calculate the product by multiplying the numbers.

$= > 8a - 144 = 0$

Move constant to the right by adding its opposite to both sides.

$= > 8a - 144 + 144 = 0 + 144$

Eliminate the opposites

$= > 8a = 0 + 144$

When adding or subtracting 0,the quantity does not change.

$= > 8a = 144$

Divide both sides of the equation by 8

$= > 8a \div 8 = 144 \div 8$

Any expression divided by itself equals 1.

$= > a = 144 \div 8$

Calculate the quotient.

$= > a = 18$