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To find two numbers that multiply to -120 and add up to -14, we need to solve a system of equations. Let's call the two numbers x and y. We have the equations xy = -120 and x + y = -14. By factoring -120, we get the pairs of factors: (1, -120), (2, -60), (3, -40), (4, -30), (5, -24), (6, -20), (8, -15), and (10, -12). Among these pairs, the numbers that add up to -14 are -10 and 12. So, the two numbers are -10 and 12.
This is algebra.
Let's take 2 numbers, x and y. What we want is xy = -120 and x+y = -14.
So we have two equations. Let's solve for one of the numbers and move that over to the other equation.
x+y=-14
x=-14-y
Let us now plug that x into the other equation.
(-14-y)y=-120
We now distribute the y to both -14 and -y.
-14y-y^2=-120
moving everything to one side we get
0=y^2+14y-120
now it's just a matter of solving for y, which can be found using the quadratic equation (-b+-(b^2-4ac)^(1/2))/(2a), where a=1, b=14, and c=-120.
Let's try plus first
(-14+(14^2-(4)(-120))^(1/2))/2
(-14+(196+480)^(1/2))/2
(-14+26)/2
6
so y=6. Let's plug that into one of the equations we had, x+y=-14.
x+6=-14
x=-20
To see if this works, let's try y=6 and x=-20 on both equations
-20(6)=-120
-20+6=-14
They work!
By the way, if we had tried minus in the quadratic equation, we would've gotten -20 for y and x as 6.
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What 2 numbers multiply to 120 and add up to -14?
None of the factor pairs of 120 add up to -14. If that was -120, you could use -20 and 6.
If you start with a number add 5 then multiply by 7 the result is 133. What was the original number?
The original number is 14.
What is the GCF of 120 who's numbers add up to 14?
134
How do you explain on how to solve the problem 14x26?
To solve the math problem 14 x 26, you multiply the number 14 by 26 as follows. First, multiply 14 by 6, the last number of 26. That gives you 84. Then multiply 14 by 2, which gives you 28. Since this answer goes in the tens column, rather than the units column, however, you need to add a zero, giving you 280. Then you add 84 and 280, which gives you 364, which is your answer.
What two numbers add up to -4 and multiply to -140?
-144
What 2 numbers multiply to 120 and add up to -14?
None of the factor pairs of 120 add up to -14. If that was -120, you could use -20 and 6.
What two numbers add together to give -14 and multiply to give -120?
-134
When you multiply it by 5 and add 14 the answerv is 64 what is your number?
The number is 10 because (5*10)+14 = 64
If you start with a number add 5 then multiply by 7 the result is 133. What was the original number?
The original number is 14.
What does 7 x 14 plus 1 mean?
It means you need to multiply 7 by 14 and then add 1 to the answer.It means you need to multiply 7 by 14 and then add 1 to the answer.It means you need to multiply 7 by 14 and then add 1 to the answer.It means you need to multiply 7 by 14 and then add 1 to the answer.
What is a trick for multiplying by the 12s?
First, multiply the original number by 10. Then multiply the original number by 2. Add the two answers that you got and you have just multiplied by 12. For Example: 7x12=(7x10)+(7x2) 70+14 84
What 2 number multiply together to equal 48 and add together to equal 14?
6 and 8 do.
What number do you have to multiply together to -24 and add together to get you -14?
-38
If you start with a number add 5 then multiply by 7 the result is 133 What was the original number?
14... yay I'm so clever!!!
What is the GCF of 120 who's numbers add up to 14?
134
What two number multiply together to equal -140 and add together to equal 4?
-136
What two number multiply together equal 126 and add together equal 23?
149
