Question

10. Factorise and divided the expressions
a.
Y? + 7y + 10 = y + 5​

Answer 1

Answer:

(y+2)

Step-by-step explanation:

We have,

(y

2

+7y+10)÷(y+5)

=

(y+5)

(y

2

+5y+2y+10)

=

(y+5)

y(y+5)+2(y+5)

=

(y+5)

(y+5)(y+2)

=(y+2)

Answer 2

Answer:

Step-by-step explanation:

Its a very simple question you have to just factorise first so the eqn- y^2+7y+10 = y+5

= by splitting mid term

=y2+2y+5y+10

=(y2+2y) (5y+10)

=y(y+2) + 5(y+2)

=(y+2) (y+5)

now dividing,

y2+7y+10 ÷ y+5

=(y+2)(y+5)/y+5

=(y+2) × (y+5)/(y+5)

= (y+2)

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