Factor
6x^2 -42x-54

show work

Notice that 6 is a factor of all three coefficients and thus can be factored out:

6x^2 -42x-54  =>  6(x^2 - 7x - 9).   x^2 - 7x - 9  does not factor so easily.  Remembering that obtaining roots of a quadratic makes it easy to write out the corresponding factors, let's apply the quadratic formula to x^2 - 7x - 9:

a=1, b = -7, c = -9. Then the discriminant is b^2 - 4ac, or (-7)^2 - 4(1)(-9), or 85.

Thus, the roots are:

      7 plus or minus √85        7 plus or minus 9.220

x = =

                 2                                           2

Let's call these roots "a" and "b."  Then the factors of the quadratic x^2 - 7x - 9 are (x-a) and (x-b), or, in this case, (x-8.11) and (x+1.11).

The original quadratic has three factors:  6, (x-8.11) and (x+1.11).

answer: d. $20

step-by-step explanation:

just took the test

there has been genes found in the x chromosome of males that have been linked to [homo/hetero]sexuality. in addition to the reign of the x chromosome, a section of chromosome 8 has also been link to, "alot of ppl are so " these facts were proven true after a 2014 study of a gay male and his strait brother. according to newscientist.com,"chromosome 14 and is mainly active in the thyroid, but also the brain. called tshr, it makes a type of receptor protein that recognises and binds to a hormone that stimulates the thyroid. in this way, the gene plays an important role in controlling thyroid function. the fact that tshr seems to be involved in sexual orientation fits with evidence that thyroid function seems to be linked to sexuality."

in conclusion, "ppl are so gay" due to their genetics.