Which equations are correct? all that apply -2b^3(6b^2+5)= - 12b^5-10b^3

- 7x^2(4x^3+2)= - 28x^6-14x^2

- 3y^4(5y^2+2)= - 15y^8- 6y^4

- 5d^3(3d^2+4)= - 15d^5-20d^3

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Which of the following describes the symmetry of the graph of y = x3?

Angle 1 and 2 are a linear pair. angle 1 equals x-39 and angle 2 equals x+61 . find the measure of each angle