Answer:
(p -3q )(p -3q )
Step-by-step explanation:
p'2 - 6pq + 9q'2
(p -3q )(p -3q )
find two values that add to give 6 and multiply to 9
p x p =p'2
-3q x p = -3pq -3 x pq = -3pq ...... -3pq - 3pq = -6pq
-3q x - 3q = 9q'2
I think it's the third one b/c the associative property states that it doesn't matter how you group the numbers in parenthesis in addition.
Y = 36x - 75
y = -49x - 66
36x - 75 = -49x - 66
<u>+ 49x + 49x </u>
85x - 75 = -66
<u> + 75 + 75</u>
<u>85x</u> = <u>9</u>
85 85
x = ⁹/₈₅
y = 36x - 75
y = 36(⁹/₈₅) - 75
y = 3⁶⁹/₈₅ - 75
y = -71¹⁶/₈₅
(x, y) = (⁹/₈₅, -71¹⁶/₈₅)
