Factorisey: 2x²plus 7xplus3
Answers
Answered by
3
Solution :
→ 2x² + 7x + 3
By splitting middle term
→ 2x² + 6x + x + 3
→ 2x ( x + 3 ) + 1 ( x + 3 )
→ ( 2x + 1 ) ( x + 3 )
To Find value of x
→ ( 2x + 1 ) ( x + 3 ) = 0
Here x have two values
Case 1 :-
→ 2x + 1 = 0
→ 2x = - 1
→ x = - 1/2
Case 2 :-
→ x + 3 = 0
→ x = - 3
Answered by
0
We can factorise given polynomial using split middle term method
We know,
2×3=6×1
6+1=7 splitting 7 into 6+1 we get
=>2x^2+(6+1)x+3
=>2x^2+6x+x+3
=>2x(x+3)+1(x+3)
=>(x+3)(2x+1)
x = -3 , x = 1/2
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