Question

3-a(4+7a)
factorise
plz its urgent!

Answer 1

Step-by-step explanation:

3-4a-7a^2=0

7a^2+4a-3=0

7a^2+7a-3a-3=0

7a(a+1)-3(a+1)=0

(7a-3)(a+1)=0

take

7a-3=0 & a+1=0

7a=3 a=-1

a=3/7

hence the value of a=3/7,-1

Answer 2

Step-by-step explanation:

this answer is sautibal