Factorise:
6x² - 3 + 7x
plz ans fast i gotta submit it
Answers
Answered by
12
Answer:
Let us put f(x) = 0
⇒ 6x2 – 7x – 3 = 0
⇒ 6x2 – 9x + 2x – 3 = 0
⇒ 3x(2x – 3) + 1(2x – 3) = 0
⇒ (2x – 3)(3x + 1) = 0
⇒ 2x – 3 = 0
x = 3/2
⇒ 3x + 1 = 0
⇒ x = -1/3
Answered by
2
Answer:
6x² - 3 + 7x
=6x² + 7x -3
=6x²+ ( 9-2 )x -3
=6x²+ 9x - 2x -3
=3x ( 2x+3 ) - 1 ( 2x+3 )
= ( 3x - 1 ) ( 2x+3 )
3x-1= 0. 2x + 3 = 0
3x = 1. or 2x = -3
x = 1/3. x = -3/2
Similar questions