Will mark brainliest! : ) complete the square to solve the expression x^2+8x-1=19 (can have multiple answers) a.) 2 b.) -2 c.) -10 d.) -3

Step-by-step explanation:

Add 1 to both sides.

The expression is in the form ax² + bx = -c , where b = 8.

Then we need to add (b/2)² to both sides to complete the square.

(8/2)² = 4² = 16

Add 16 to both sides.

Factor left side of the equation.

Take the square root of both sides.

Subtract 4 from both sides.

answer: a. 74

step-by-step explanation:

it shows divided evenly, so add the 37+37 = 74

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2