How to find the square of a sum

Practice Questions

PSAT Math › How to find the square of a sum

Questions

5

1

Simplify the radical.

$\sqrt{3283}$

2

Expand:

$\left ( 10x+ \frac{1}{5}\right )^{2}$

3

If $\left (5 x^{2 } - x + 1\right )^{2}$ is expanded, what is the coefficient of $x^{3}$ ?

4

Expand:

$\left ( 10x+ 0.8\right )^{2}$

5

If $\left (5 x^{2 } - x + 1\right )^{2}$ is expanded, what is the coefficient of $x^{2}$ ?

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