I need help on math. It’s trinomials
25y^2-60y+36

(5y-6)^2

Step-by-step explanation:

Note that the polynomial 25y^ 2  −60y+36 is a perfect square trinomial, so we will use the following formula.

A ^2 −2AB+B^2 =(A−B) ^2

In this example we have A=5y and B=6 so,

25y^2 −60y+36=(5y−6)^2

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