Factor the expression
3x+7x 2

100x^2

Step-by-step explanation:

(3x+7x)^2 I hope was the question...

=(3x)(3x)+(3x)(7x)+(7x)(3x)+(7x)(7x)

=9x^2+21x^2+21x^2+49x^2

=100x^2

b.-4 units

all you   do is count how many times you move

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.