Assuming you mean:
(9x × x2)2
Then we can say:
= (9x3)2
= 81x6
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x2 * -3x = -3x3
x2 - 9x = -8 ∴ x2 - 9x + 8 = 0 ∴ (x - 1)(x - 8) = 0 You can then solve it as well: ∴ x ∈ {1, 8}
Step 1: Divide by 9x: 9x (x2 + 3x - 10) = 9x(x + 5)(x - 2)
A binomial
X2 A number to the second power is squared.