An angle measures 30° more than the measure of its complementary angle. What is the measure of each angle?

60 degrees and 30 degrees

Step-by-step explanation:

If you really want, you can set up a system of equations using the given information. X can the larger angle and Y can be the smaller angle.

x + y = 90

x = y + 30

In reality, this is not necessary for such a simple problem. Some trial and error testing would help you figure this out much faster.

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

$12. that is my answer.