Answer:
12x² - 2x - 30
Step-by-step explanation:
When multiplying binomials, remember to follow the FOIL method:
FOIL =
First
Outside
Inside
Last
Follow FOIL: (3x - 5)(4x + 6)
(3x)(4x) = 12x²
(3x)(6) = 18x
(-5)(4x) = -20x
(-5)(6) = -30
Combine like terms, simplify:
12x² + 18x - 20x - 30
12x² + (18x - 20x) - 30
12x² - 2x - 30
12x² - 2x - 30 is your answer.
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Answer:
12x²-2x-30=2(6x²-x-15)
Step-by-step explanation:
(3x-5)(4x+6)=12x²-20x+18x-30=
12x²-2x-30=2(6x²-x-15)
Solution:
First find the slope
Secondly, write the equation
Answer:
Check:
Hope this was helpful.
Answer:
ratio would be 6:13
Step-by-step explanation:
On a field trip there are 12 adults and 14 students.
The total number of people = 12 + 14 = 26 people
The ratio of the number of adults = or 6 : 13
The ratio would be 6:13
Answer:
6 to 13
Step-by-step explanation:
Hope it's correct :)
5x - 2y = 32
The solution is x = 2 and y = -11
Solution:
Given system of equations are:
x + y = -9 --------- eqn 1
5x - 2y = 32 ------------- eqn 2
We have to solve the system of equations
We can solve the system by substitution method
From eqn 1,
x + y = -9
Isolate "y" to one side
y = -9 - x ---------- eqn 3
Substitute eqn 3 in eqn 2
5x -2(-9 - x) = 32
5x + 18 + 2x = 32
Combine the like terms
7x = 32 - 18
7x = 14
x = 2
Substitute x = 2 in eqn 3
y = - 9 - 2
y = -11
Thus the solution is x = 2 and y = -11