define this equation in wording 3b^2-12=0

Question

I need to define each answer in wording 3b^2-12=0, 3b^2=12, b^2,=12/3 b^2=4, b=2 or b=-2

Answer 1

12 less then 3 times the square of a number b is zero: 3b²-12=0;

Add 12 to each side of the equation: 3b²=12;

Divide each side of the equation by 3: b²=4;

Take the square root of each side of the equation, remembering that a perfect square has two square roots: b=√4, 2×2=4 and (-2)×(-2)=4, so the number b is 2 or negative 2.