Solve by using quadratic zero product property. (7x+2)(5x-4)=0?

2 Answers
May 1, 2018

x=-2/7" or "x=4/5

Explanation:

"given "axxb=0

"then "a=0" or "b=0" or "a" and "b=0

"using this property then equate each factor to zero"
"and solve for x"

7x+2=0rArrx=-2/7

5x-4=0rArrx=4/5

May 1, 2018

x = -2/7 or x = 4/5

Explanation:

When you've factorized the E.Q.N and obtained (7x+2)(5x-4)=0

By applying the quadratic zero product property,
It means (7x+2) = 0 or (5x-4)=0

=> 7x+2 = 0

:. x = -2/7

=> 5x-4 = 0

:. x = 4/5