HELL I NEED THIS FOR A TES
What values of x make the equation true 2x^2+5-17=x^2+7 ?

a. x^2-6= 91

b. x^2(x-6)= 91

c. x(x+6) = 91

d. x(x-6)= 91

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

What statement is true? 2x^2-9x+2=-1

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.