x^2 + 11X + 30 .. How is this factored?

Answer 1

(x + 6) (x + 5)
Check
(x + 6) (x + 5)
x² + 6x + 5x + 30
x² + 11x + 30 (as required)

Answer 2

Whenever the coefficient of x^2 is 1, you have to find the pair of numbers that both multiplies to make the constant (+30) and adds to make the coefficient of x (+11)
5*6 = 30 and 5 + 6 = 11

So, the factored form is (x + 5)(x + 6)

Answer 3

If it can be factored then the factors are x+a and x+b. Maybe you can see that 30 = a*b, and 11 = a+b. So what are a and b?

In other words, find two numbers whose product is 30 and whose sum is 11. Well, 5 and 6 come to mind. And so the factors must be x+5 and x+6

If this is too hard to understand, maybe you are not ready for this course.

Ben G

Answer 4

You know that x^2 is x * x

Therefore, you have:

(x * a) (x * b)

To find a and b, ask yourself, "What two numbers add up to get 11 and multiply to get 30?" Why, 5 and 6 do!

Therefore a = 5, b = 6.

Your factorization is (x * 5)(x * 6).

Answer 5

You see what two numbers multiply to 30 and add up to give you 11.

soo

(x+5)(x+6)=0

solve for x, so you're seeing when the equation equals zero, and know that any number times 0 is 0 so you're trying to make one and then the other equal 0

so -5 and -6 are your answers

Answer 6

this question is in a form of quadratic..so u either can use the formula which is: x= -b ± √ (b^2 - 4ac) / 2a where a=1, b=11, and c=30...or u can solve it by factorization: (x+5) (x+6) =0, therefore x=-5, x=-6..

Answer 7

(x+6)(x+5)

Answer 8

(x+5)(x+6)
so x can equal -5,-6

Answer 9

(x+5)(x+6)=0
x= -5or-6