91Ó°ÊÓ

Factor completely. \(r^{2}-2 r+1-4 s^{2}\)

Graph. $$y=-3$$

Solve. A rectangular table is 60 in. long and 40 in. wide. A tablecloth that is twice the area of the table will be centered on the table. How far will the tablecloth hang down on each side?

Find \(-x\) if \(x=-16\)

Write an equivalent expression by factoring. $$r x^{2}-r x+5 r+s x^{2}-s x+5 s$$

Solve. Three consecutive even integers are such that the square of the third is 76 more than the square of the second. Find the three integers.

Solve. Three consecutive even integers are such that the square of the first plus the square of the third is \(136 .\) Find the three integers.

Factor. $$ 4 p^{2}+12 p q+9 q^{2} $$

Solve. A rectangular flower bed is to be \(3 \mathrm{m}\) longer than it is wide. The flower bed will have an area of \(108 \mathrm{m}^{2} .\) What will its dimensions be?

Simplify. Do not use negative exponents in the answer. Convert \(3.1875 \times 10^{8}\) to decimal notation.