Answer:

Step-by-step explanation:
Given

Required: Express as a perfect square

Add 10 to both sides


Expand

Factorize:

Factorize:


It would be 15.4 -8.1 , hope this helps
Answer:
x = -1, PR = 38.
Step-by-step explanation:
As Q is the midpoint of PR
PQ = QR
6x + 25 = 16 - 3x
9x = -9
x = -1.
PR
= 6x + 25 + 16 - 3x
= 6(-1) + 25 + 16 - 3(-1)
= -6 + 25 + 16 + 3
= 38.
Answer:
isk
Step-by-step explanation:
-28 because if you add 8 to -120 you get -112 then divide it by 4 and you got -28