Answer:


Step-by-step explanation:
2x² +21x-61 = (x+7)²
expand
2x² + 21x - 61 = x² + 14x +49
move everything to one side
x² + 7x - 12 = 0
use quadratic formula

plug in the values

solve



Answer:
36 total muffins
Step-by-step explanation:
5*4=20
8*2=16
20+16=36
The pictures too blurred, can you write it out?
The answer should be (6,6), you can plug 6 in for both x and y in order to solve the function.
y=12-x
(6)= 12 - (6)
6=6