How to subtract exponential variables

Practice Questions

ISEE Upper Level (grades 9-12) Quantitative Reasoning › How to subtract exponential variables

Questions

3

1

is a positive number. is a negative number.

Which is the greater quantity?

(a) $x^{2} - y ^{2}$

(b) $(x-y) ^{2}$

2

Simplify the expression:

$10x - 4x^{2} - 5x$

3

Assume neither nor is zero.

Which is the greater quantity?

(a) $\frac{(x+y)^{2} - (x - y)^{2}}{xy}$

(b)

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