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Answers
Step-by-step explanation:
https://www.tiger-algebra.com/drill/(12y~2_28y_15)/(6y~2_35y_25)/(2y~2-y-3)/(2y~2_11y-20)/
STEP
1
:
Equation at the end of step 1
(((12•(y2))+28y)+15)
———————————————————— ÷ (((2•(y2))-y)-3) ÷ ((2y2+11y)-20)
(((6•(y2))+35y)+25)
STEP
2
:
Equation at the end of step
2
:
(((12•(y2))+28y)+15)
———————————————————— ÷ ((2y2-y)-3) ÷ (2y2+11y-20)
(((6•(y2))+35y)+25)
STEP
3
:
Equation at the end of step
3
:
(((12•(y2))+28y)+15)
———————————————————— ÷ (2y2-y-3) ÷ (2y2+11y-20)
(((2•3y2)+35y)+25)
STEP
4
:
Equation at the end of step
4
:
(((22•3y2)+28y)+15)
——————————————————— ÷ (2y2-y-3) ÷ (2y2+11y-20)
(6y2+35y+25)
STEP
5
:
12y2 + 28y + 15
Simplify ———————————————
6y2 + 35y + 25
Trying to factor by splitting the middle term
5.1 Factoring 12y2 + 28y + 15
The first term is, 12y2 its coefficient is 12 .
The middle term is, +28y its coefficient is 28 .
The last term, "the constant", is +15
Step-1 : Multiply the coefficient of the first term by the constant 12 • 15 = 180
Step-2 : Find two factors of 180 whose sum equals the coefficient of the middle term, which is 28 .