Answer:
1
Step-by-step explanation:
Look at the LHS: you have the square of x, then you have 2 times x, times -1. to complete a square you just need to add the square of -1, that is 1. That becomes

They are COMPLEMENTARY ANGLES since they form a right angle or add up to 90°
Answer:
the answer is one solution
Answer
D $48.00 u need to multiply 216 and 12 to get 48
The answer is 20
Hope this helps