Question

Solve the equation (4x + 1)(3x - 2) = 0


{-4, 1.5}

{-1/4, 2/3}

{1/4, 2/3}

{-4, 3}

Answer 1

if two numbers multiply to give zero, it means that one of the numbers must equal zero.
a x b = 0, either a=0 or b=0 (or both could be zero).

therefore in this case either 4x+1=0 or 3x-2=0.
so solve for x in both cases to find the values of x.

Answer 2

i don't get it D: