The following steps are used to rewrite the polynomial expression (x + 4y + 2)(x - 7y). Step 1: x(x - 7y) + 4y(x – 7y) + z(x - 7y)
Step 2: x2 – 7xy + 4yx - 28y2 + zx - 7zy
Step 3: x2 - 7xy + 4xy – 28y2 + xz - 7yz
Step 4: x2 – 3xy – 28y2 + x2 – 7yz
Identify the property used in each of the steps:

the bolded word " farsighted" could be replaced with visionary.

answer is 1

step-by-step explanation:

can someone me: the midsegment through the legs of an isosceles triangle is 4 in. find the sides of the triangle if its perimeter is 20 in. ,   and point g is the centroid of the right △abc with hypotenuse ab=18 in. find cg.