2y²+6y-20
by
split the middle
Answers
Answer:
Factoring y2 - 3y - 10
The first term is, y2 its coefficient is 1 .
The middle term is, -3y its coefficient is -3 .
The last term, "the constant", is -10
Step-1 : Multiply the coefficient of the first term by the constant 1 • -10 = -10
Step-2 : Find two factors of -10 whose sum equals the coefficient of the middle term, which is -3 .
-10 + 1 = -9
-5 + 2 = -3 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -5 and 2
y2 - 5y + 2y - 10
Step-4 : Add up the first 2 terms, pulling out like factors :
y • (y-5)
Add up the last 2 terms, pulling out common factors :
2 • (y-5)
Step-by-step explanation:
Step-by-step explanation:
2y square +10y-4y-20
2y (y+5)-4(y+5)
(2y-4) (y+5)