
That is the formula to find the slope. Hope it will help you.
Answer:
x = 6
Step-by-step explanation:
QRST is a square.
QR = RS (sides of a square are equal)
7x - 10 = 5x + 2
7x - 5x = 10 + 2
2x = 12
x = 12/2
x = 6
1) (12p-3)(12p-3)
=144p^2-36p+36p+9
=144p^2+9 (-36+36=0 so it cancels out)