Can you guys factorize these polinomials

a)3x²+3x=0

b)5x²-15x=0

What ia the sum if the first 7 terms of the geometric series

Marking brainliest rewrite the equation x = 65 - 60p by factoring the side that contains the variable p.

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.