(x+1)(x+1) (x + 4)(x-4)
-------------------- x -------------------------
(x - 4)(x-4) (x+1)
(x+1) (x + 4)
= -----------------
(x - 4)
Answer is A first choice
(x+1) (x + 4)
-------------------
(x - 4)
Answer:
3
Step-by-step explanation:
8x-4=20
8x-4=20
+4. +4
8x=24
8. 8
x=3
Answer:
Your answer would be c
Step-by-step explanation:
anytime you do percentages you devide that number by 100
Answer:
(7,12),(-12,-7)
Step-by-step explanation:
x^2 + y^2 = 193
x - y = - 5
x = y - 5
(y - 5)^2 + y^2 = 193
y^2 - 10y + 25 + y^2 = 193
2y^2 - 10y + 25 = 193
2y^2 - 10y + 25 - 193 = 0
2y^2 - 10y - 168 = 0
2*(y^2 - 5y - 84) = 0 This factors into
2*( y - 12) (y + 7) = 0
y = 12
in which case x = 12 - 5 = 7
y = - 7
in which case x = -7 - 5 = - 12
