What are the solutions of the equation x^2 + 4x + 4= 25? a. x = 3 or x = -7 b. x = -3 or x = 7 c. x = 1 or x = 9 d. x = 1 or x = -9

Firstly, you need to set the equation to 0. To do that, subtract both sides by 25: .

Next, we can complete the square. But first, what two terms have a product of -21x^2 and a sum of 4x? That would be 7x and -3x. Replace 4x in the equation with 7x - 3x:

Next, factor x^2 + 7x and -3x - 21 separately. Make sure that they both have the same quantity on the inside:

Now you can rewrite the equation as

Now using zero product property, solve for x:

In short, your answer is A. x = 3 or x = -7.

costs the what? what is the cost of the pants?

step-by-step explanation:

if it is $10, then the price is 14.

take 40% of the cost, and then add the cost.

40% of 10 = 4

4+10 = 14.