(x + 5) is a factor of x2 + 2x – 15. What is the other factor?

(x-3)

Step-by-step explanation: First look what which two numbers would multiply to -15 and add to 2. In this case, it's 5 and -3 because 5x-3=15 and 5+(-3)=2.

So the other factor is (x-3)

To check your work, simply multiply

(x+5)(x-3) = x2 + 2x - 15

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.