1. Which of the following is not equal to 3x(4x + 6y)? a. 2x(6x + 9y)
b. 12x2 + 18xy
C. 12 + 2x + 18xy
d. 6x(3y + 2x)

17 1/3

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: you need to organize this better it does not make sense.

step-by-step explanation: ?

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step-by-step explanation: