factorize each of the following expression. y²+20y+100
Answers
Answer:
y2 + 2*10*y +10*10 = (y+10)2
Step-by-step explanation:
y2 + 2*10*y +10*10 = (y+10)2
Answer: (y+10)(y+10) is the solution
Step-by-step explanation:
Given:y²+20y+100
1) Make the skelton(y )(y )=0
2) Add the signs
(i)if all the terms are positive:(y+ )(y+ )=0
(ii)if the center term is negative:(y- )(y- )=0
(iii)if the last term is negative(y+ )(y- )=0
(iv)if both the middle term and last term is negative(y+ )(y- )=0
3)Find the factors for last term should equal the middle term
4)Check work with FOIL method
As mentioned above step:
1)Make a skelton
(y )(y )=0
2)(i)if all the terms are positive:
(y+ )(y+ )=0
3)Now, Find the factors for last term should equal the middle term
100 factors are=1 x 100, 10x10 and 2 x 50
y²+20y+100=0
So,(y+10)(y+10)
=y^2+10y+10y+100
=y^2+20y+100
(y+10)(y+10) is the solution