Giải phương trình sau
(x-1)(x+1)(x+3)(x+5)+15=0

15x^4 -8x^3 -14x^2-8x+15=0

Use the discriminant to describe the roots of each equation. then select the best description. 2m2 + 3 = m double root real and rational roots real and irrational roots non-real roots

Math each whole number with a rational, exponential expression

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16