Difficult

Simplifying Polynomial Expressions: Very Difficult Problems with Solutions

By Catalin David
Problem 1
Which of these is a monomial,
$9\sqrt{x^{7}}$ or $2x^{8}$?
Problem 2
What is $\dfrac{\sqrt{6}x^{3}}{\sqrt{3}x}$?
Problem 3
Which of these is a monomial,
$-\frac{2\sqrt{x^{4}}}{3}$ or $9(x^{3})^{\frac{1}{2}}$
Problem 4
39x7 - 45x7 - 134x7 - 39x7 + 134x7 + 44x7 =
Problem 5
5(3x - 1)2 - 3(2x + 3)2=
Problem 6
4(2x - 3)(2x + 3) - 5(3x - 4)(3x + 4) =
Difficult
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