Answer:
fyi b's answer has imaginary numbers in it...
Imaginary: 1 +
Imaginary: 1 -
Step-by-step explanation:

=
... the negative root will produce imaginary solutions
Answer:

Step-by-step explanation:
we have

step 1
Apply the distributive property both terms


step 2
Combine like terms



It is 12 because there are 180 degrees in a set of supplementary angles and 12 times 10 equals 120, plus 60 equals 180.
Hello there!
Evaluate
-3b² + 25
For b = 7
-3(7)² + 25
-3(49) + 25
-147 + 25
= -122
I hope that helps!