Using the quadratic formula works but if you know there are 2 answers (highest power of problem tells you how many solutions) then
10x^2 = 5x
So either x = 0, giving 0=0. Or divide by 5x
2x = 1
x = 0.5
20 is a multiple of 10
It is neither for 30.
Answer:
cubic units
Step-by-step explanation:
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