factorise 3(x+2)^2+17(x+2)+10
Answers
Answered by
17
Answer:
x = -4/3 ; x = -7
Step-by-step explanation:
3(x+2)^2+17(x+2)+10=0
let( x+2) =a
3a^2+17a+10=0
3a^2 + 15a + 2a + 10=0
3a (a+5) + 2 (a+5)=0
(3a+2) (a+5)= 0
3a+2=0 ; a+5=0
a= -2/3 ; a= -5
resubstituiting the value of a
x+2 = -2/3 ; x+2 = -5
x= -2/3 - 2 ; x = -5-2
x= -2-6/3 ; x = -7
x = -4/3 ; x = -7
Answered by
5
Answer:
Step-by-step explanation:
x= -8/3 x=-7
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