ERROR ANALYSIS In Exercises 27 and 28, describe and correct the error in factoring the polynomial.

27. x^2 + 14x + 48 = (x+4)(x+12)
28. S^2-17s-60=(s-5)(s-12)

the answer is the third / last answer

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

answer: b

step-by-step explanation: