Select all of the equations that have no real solution.

5x - 1 - 2x = 3x - 7

6x - (x - 2) = 5x - 2

-3(5x + 3) = -15x - 9

10x + 4 + x = 4 + 11x - 1

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

What describes horizontal cross section of the right rectangle 6m 8m 5m

Consider the function f(x)=-5x+3 what is f(-2)