factorise i) x^2+9x+18 ii) 2x^2-7x-15
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Answered by
3
Hey. .....Here is ur answer
x² +9x+18
x² + 6x+3x+18
x(x+6)+3(x+6)
(x+3) (x+6)
x² +9x+18
x² + 6x+3x+18
x(x+6)+3(x+6)
(x+3) (x+6)
Answered by
4
1,
x^2+9x+18=0
x^2+3x+6x+18=0
x(x+3)+6(x+3)=0
(x+3)=0 and (x+6)=0
x= -3 and x= -6
2,
2x^2-7x-15=0
2x^2-10x+3x-15=0
2x(x-5)+3(x-5)=0
(2x+3)=0 and (x-5)=0
x= -3/2 and x= +5
if this help plz mark as brainliest..........:)
x^2+9x+18=0
x^2+3x+6x+18=0
x(x+3)+6(x+3)=0
(x+3)=0 and (x+6)=0
x= -3 and x= -6
2,
2x^2-7x-15=0
2x^2-10x+3x-15=0
2x(x-5)+3(x-5)=0
(2x+3)=0 and (x-5)=0
x= -3/2 and x= +5
if this help plz mark as brainliest..........:)
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