Answer:
(x + 2)(4x - 2).
Step-by-step explanation:
(x+2)(2x+1)+(x+2)(2x-3)
Note that (x + 2) is common to 2 parts of the expression. So we have:
(x + 2)(2x + 1 + 2x - 3)
= Ix + 2)(4x - 2)
Answer:
Domain of the function is (inf, -inf)
Step-by-step explanation:
1) If we add - x to x² + 3 x we will get: x² + 3 x - x = x² + 2 x, with same number of terms and same degree (2),
2 ) xy - 1 + xy = 2 xy - 1
3 ) x + y - 3 y = x - 2 y
4 ) x³ - 5 x² + 1 - 2 x³ = - x³ - 5 x² + 1
Pairs :
( x² + 3 x) ↔ ( -x )
( xy - 1)↔ ( xy )
( x + y ) ↔ ( - 3 y )
( x³ - 5 x + 1 ) ↔ ( - 2 x³ )
Answer:
Jacob sold 25 bars - chocolates and 15 peanut butter.
Step-by-step explanation:
Jacob sold 40 candy bars.
Let the bars - chocolate be x and peanut butter be y and made $65.
Now,
x + y = 40 ...(1)
2x + y = 65 ...(2)
Now, From equation (1) we get,
x + y = 40
x = 40 - y
Now, put the value of <u>x = 40 - y</u> in equation (2) we get,
2x + y = 65
2(40 - y) + y = 65
80 - 2y + y = 65
y = 80 - 65
y = 15
Now, put the value of y in equation (1)
x + y = 40
x + 15 = 40
x = 40 - 15
x = 25
The bars - chocolate = x = 25 and
peanut butter = y = 15
Thus, Jacob sold 25 bars - chocolates and 15 peanut butter.
<u>-TheUnknownScientist</u>
Answer:
9/5
Step-by-step explanation:
this is because you divide
