Can someone please help please please help me please please ASAP ASAP

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

Solve the equation using the zero-product property. -3n(7n - 5) = 0 a. 0, -5/7 b. -1/3, -5/7 c. -1/3, 5/7 d. 0, 5/7

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°