Question

solve 2x^2 = 9x. round to the nearest tenth.

a)x = 0 or x = -4.5
b)x = 4.5
c)x = 1.5 or x = 3
d)x = 0 or x = 4.5

i think the answer is d but i could be wrong

Answer 1

2x^2 = 9x
2 x^2 - 9 x = 0
x (2x-9) = 0
x = 0
or
x = 4.5