Solve for x in the following equation.

x2 + 4x = 21

A.

x = 3; - 7

B.

x = - 1; 21

C.

x = 3; - 8

D.

x = - 3; 7

Explain how to compute the sum of 382+130

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C) Uranus has three moons less than Saturn. Together, they have thirty-three moons. How many moons does each planet have?

Ike is five years older than his brother. If Ike's age is represented by x, which of the following would represent his brother's age? A. 5 x B. 5 - x C. x - 5 D. x + 5

What 30 coins make up 0.78 cents

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F (x) = - 5xf (x) = - 5x g (x) = 8x2-5x-9g (x) = 8x2-5x-9 Find (f⋅g) (x) (f·g) (x). Select one: a. - 40x4+25x3+45x2-40x4+25x3+45x2 b. - 40x2+25x+45x-40x2+25x+45x c. - 40x3-5x-9-40x3-5x-9 d. - 40x3+25x2+45x

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Can you solve the measure of an angle is twenty-nine times the measure of a supplementary angle. what is the measure of each angle

The product of 6 and the sum of 4 and 5 write and expression of what she wrote