2x2+7x+15 factorise the equation to find x
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2x^2+7x+15
=2x^2+(10-3)x+15
=2x^2+10x-3x+15
=2x(x+5)-3(x+5)
thus,
=A(2x-3)B(x+5)
2x-3=0. x+5=0
2x=3 x=-5
x=3/2
hence,
x=3/2 and -5............
......I HOPE IT WILL........
.......HELP YOU........
=2x^2+(10-3)x+15
=2x^2+10x-3x+15
=2x(x+5)-3(x+5)
thus,
=A(2x-3)B(x+5)
2x-3=0. x+5=0
2x=3 x=-5
x=3/2
hence,
x=3/2 and -5............
......I HOPE IT WILL........
.......HELP YOU........
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