For the trinomial to be a perfect square trinomial the coefficient for the x^2 term must. E a perfect square.
Letter C
4) 28 this is the right answer
So 8x-7y=-7
-16+12x=14
you can simplify the sceon equation
-8+6x=7
add 8 to both sides
6x=15
divide by 6
x=15/6
subssitute
8(15/6)-7y=-7
120/6-7y=-7
20-7y=-7
subtract 20
-7y=-27
divide by -7
y=27/7
x=15/6
y=27/7
Answer:
Step-by-step explanation:
3-x-3x=5
first combine like terms
3-4x=5
-4x=2
divide each side by -4
x=2/-4 or -1/2 or -0.5
Answer:
16y + 32
Step-by-step explanation:
Expand each term.
(y+6)² - (y-2)²
= (y+6)(y+6) - (y-2)(y-2)
= y² + 12y + 36 - (y² - 4y + 4)
Subtract the second group by changing each term's signs
= y² + 12y + 36 - y² + 4y - 4
Collect like terms
= 16y + 32
