Answer:
[tex]3x {}^{2} + 18x + 15 \\ 3(x {}^{2} + 6x + 5) \\ 3(x {}^{2} + 5x + x + 5) \\ 3(x(x + 5) + 1(x + 5)) \\ 3((x + 1)(x + 5)) \\ 3(x + 1)(x + 5) \\ [/tex]
The required answer for the following factorisation will be
3( x + 1 )( x + 5 ) or ( x + 1 )( 3x + 15 )
(x+1) (x+5)
Step-by-step explanation:
1) Take out common factor from whole terms 3x²+8x+15 which is 3
2) 3(x²+6x+5)=0. By transporting the 3 on other side it will be 0 so the remaining equation is x²+6x+15
3) By using middle term spitting method, 6x= 5x+x
= x²+5x+x+5
= x(x+5)+1(x+5)
= (x+1) (x+5)
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Answer:
[tex]3x {}^{2} + 18x + 15 \\ 3(x {}^{2} + 6x + 5) \\ 3(x {}^{2} + 5x + x + 5) \\ 3(x(x + 5) + 1(x + 5)) \\ 3((x + 1)(x + 5)) \\ 3(x + 1)(x + 5) \\ [/tex]
The required answer for the following factorisation will be
3( x + 1 )( x + 5 ) or ( x + 1 )( 3x + 15 )
Answer:
(x+1) (x+5)
Step-by-step explanation:
1) Take out common factor from whole terms 3x²+8x+15 which is 3
2) 3(x²+6x+5)=0. By transporting the 3 on other side it will be 0 so the remaining equation is x²+6x+15
3) By using middle term spitting method, 6x= 5x+x
= x²+5x+x+5
= x(x+5)+1(x+5)
= (x+1) (x+5)
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