Here we go ~
[ add 2 on both sides ]
[ form identity : a² + b² + 2ab ]
[ a² + b² + 2ab = (a + b)² ]
so, the value of required expression is 6
[usually positive value is considered, but if asked the value can be either positive or negative]
Answer:
-4
Step-by-step explanation:
We can find the slope when given two points by using the following
m = (y2-y1)/(x2-x1)
= (-7--19)/(-2 -1)
= (-7+19)/(-2-1)
= 12/-3
=-4
The number is 26, because 45-19=?
?+19=45
Answer:
6 and 2
Step-by-step explanation:
let the 2 numbers be x and y with x > y, then
x + y = 8 → (1)
5x + 4y = 38 → (2)
Rearrange (1) expressing x in terms of y by subtracting y from both sides
x = 8 - y → (3)
Substitute x = 8 - y into (2)
5(8 - y) + 4y = 38 ← distribute and simplify left side
40 - 5y + 4y = 38
40 - y = 38 ( subtract 40 from both sides )
- y = - 2 ( multiply both sides by - 1 )
y = 2
Substitute y = 2 into (3) for corresponding value of x
x = 8 - 2 = 6
The larger number is 6 and the smaller number is 2
Answer:
the answer is 64m^4 - 1
64m^4 + 8m^2 - 8m^2 - 1
Step-by-step explanation:
