0
The question probably refers to factoring 5x2 + 7x - 24
The general form of a quadratic equation is ax2 + bx + c .
In this case, a = 5, b = 7 and c = -24.
ac = 5 x -24 = -120 = - (23 x 3 x 5)
Determine the two integers whose sum is b = 7 and whose product is ac = -120
The two integers are 15 and -8.
5x2 + 7x - 24 = 5x2 + 15x - 8x -24 = 5x(x + 3) - 8(x + 3) = (5x - 8)(x + 3)
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is the factor expression for 4g plus 16?
4(g+4) you can take a 4 out from both terms
Factorise xy plus 5yz-2y?
if you take a factor of (Y) you end up with Y(X+5Z-2).
How do you factor x3 plus 5x2 plus 6x?
x^3+5x^2+6xFirst take out an x: x(x^2+5x +6)Then find the roots: x(x+2)(x+3)
Why do you use binomials?
Binomials are used when the total of n independent trials take place and one wants to find the probability of r successes, when each success has a probability "p" of occurring. There should be independent trails, Probability of success stays the same for all trials, Fixed number of trials and Two different classifications in order to use binomial distribution.
Write How the Factor Theorem can be used to determine whether x plus 1 is a factor of x3-2x2-8x-5?
we can use direct substitution. do this we must take the opposite of the constant in the factor that we want to test. -1*(1)=-1 now we simply take f(-1). =-1^3-(-2)^2-8(-1)-5 =-1-4+8-5 =-2 since we got -2 in the end (x+1) is not a factor of this polynomial. According to factor theorem it can only be a factor is the remainder is 0
Which of the binomial below is a factor of this trinomial x2 plus 2x-35?
X2 + 2X - 35(X - 5)(X + 7)================take your pick of these two binomials
What is the factor of 51mn plus 68mn-34mn?
You can take 17mn out of all of those.
How do you factor x cubed plus x squared plus x?
x^3 + x^2 + x = x(x^2 + x + 1)
How do you factor 6y plus 18?
You take out the common factor, 6. 6y + 18 = 6(y + 3)
How do you factor the cubic polynomial 4x3 plus 20x2 plus 2x-3?
This polynomial doesn't factor. The only thing you can do is take out parts of some terms, e.g. 2(2x3 + 10x2 + x) - 3.
What is the factor expression for 4g plus 16?
4(g+4) you can take a 4 out from both terms
How do you take 7x2 minus 24x-16 and factor into two binomials?
Set up two brackets. Since 7 only has two factors, put 7x in one bracket and x in the other. The two other numbers will be a factor pair of 16 (16,1)(8,2)(4,4). Since the signs are minus, one of the brackets will be plus and one will be minus. Now you just have to put it together in a way that fits. We used to call that trial and error, now it's called guess and check. (7x + 4)(x - 4)
2x3 plus 4x2 plus 8x factor the polynomial?
Take out the common factor, 3: 3x + 6 = 3(x + 2).
Factorise xy plus 5yz-2y?
if you take a factor of (Y) you end up with Y(X+5Z-2).
Factor 81x plus 9x?
You don't need to factor that; you can add them together, since they have the same variable.However, assuming you might mean 81x squared + 9x, you can take out the common factor, which is 9x.
What is a factor of the binomial of 4x plus 20x plus 24x?
While it is possible to take 4x out of all of those, it is also possible to add them and get 48x, which factors to 2 * 2 * 2 * 2 * 3 * x
Why do you use binomials?
Binomials are used when the total of n independent trials take place and one wants to find the probability of r successes, when each success has a probability "p" of occurring. There should be independent trails, Probability of success stays the same for all trials, Fixed number of trials and Two different classifications in order to use binomial distribution.
