If you divide 36 by 4, it equals 9, so each side is 9. Then you multiply 9 to 9, which equals 81 in^2.
Answer:
35
Step-by-step explanation:
100 / 50 = 2
70 / 2 = 35
Answer:
12%
Step-by-step explanation:
75-75*0.2=60
60+60*0.1=66
66/75=0.88=88%
Answer:
The first one is -2x^2 - 21x + 4, the second one is -15 (I think, not 100% sure), the third one is 4xyz + 3yz + 5x - 4 (also not 100% on this one)
<u>The concept:</u>
We are given the equation:

Which can be simplified as:

Since any number to the power '0' is 1
x² - x must be equal to 0 for the given equation to be true
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<u>Solving for x:</u>
x² - x = 0
x(x-1) = 0
now, we can divide both sides by either x OR x-1
So we will see what we get for either choice:
x = 0/(x-1) x-1 = 0/x
x = 0 x = 1
Hence, the value of x is either 0 or 1