Polynomial p(x)=8x^3-2x^2-14x+5

47 - 90 = 43

43 - 180 = x

x = 137

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.