I will assume this is
3x^2 + 5x^2 - x - 7x^2 = 0
x^2 - x = 0
x(x-1) = 0
x = 0 or x = 1
Solve the equation for x. Write the solution set
3x2 + 5x2 – x – 7x2 = 0
2 answers
3x^2+5x^2-x-7x^2=0
8x^2-x-7x^2=0
1x^2-x=0
x(x-1)=0
x=0, 1
8x^2-x-7x^2=0
1x^2-x=0
x(x-1)=0
x=0, 1