Answer:
14 and 22
Step-by-step explanation:
If x is the first number, then 36-x is the second. We are told that ...
2x -(36-x) = 6 . . . . twice the first less the second is 6
3x = 42 . . . . . . . . . add 36
x = 14
(36 -x) = 22
The numbers are 14 and 22.
X² - 3x - 10
x² = x * x
10 can be factored:
1 x 10 ⇒⇒⇒ difference between factors = 9
2 x 5 ⇒⇒⇒ difference between factors = 3 ⇒ (The correct pair)
(x-5)(x+2) = x(x+2) - 5(x+2)
= x² + 2x - 5x - 10
= x² - 3x - 10
∴ x - 5 = 0 ⇒⇒⇒ x = 5
x + 2 = 0 ⇒⇒⇒ x = -2
I have attached <span>algebra tiles for the given equation.</span>
Answer:
A
Step-by-step explanation:
It depends if x is positive or negative and the same as in y
Answer:
D
Step-by-step explanation:
if x=5 then,
y=-6×1+11
=-6+11
=5