Answer:
(9 x - 7 y) (9 x + 7 y)
Step-by-step explanation:
Factor the following:
81 x^2 - 49 y^2
Hint: | Express 81 x^2 - 49 y^2 as a difference of squares.
81 x^2 - 49 y^2 = (9 x)^2 - (7 y)^2:
(9 x)^2 - (7 y)^2
Hint: | Factor the difference of two squares.
Factor the difference of two squares. (9 x)^2 - (7 y)^2 = (9 x - 7 y) (9 x + 7 y):
Answer: (9 x - 7 y) (9 x + 7 y)
Answer:
Step-by-step explanation:
<u>Use u-substitution.</u>
Let u=5+2x
∴=2
∴du=2dx
(because (1/2)(2)=1)
(because 5+2x=u, and 2dx=du)
(1/2) (because =)
(1/2)
(1/2) (/(3/2))
(1/2) (2/3)
u=5+2x, so =
Answer:
inequality form -2<x<5
interval notation (-2,5)
sure of my answer
−Step-by-step explanation:
Answer:
inconsistent
Step-by-step explanation:
I need the chart to finish it you'll have to post it