factorise the following polynomial:
1)x^2+6x+8
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First find 2 numbers p & q such that p+q =6 and pq=8
Now x²+6x+8 => x²+4x+2x+8
⠀⠀⠀⠀⠀⠀⠀⠀⠀=x(x+4)+2(x+4)
⠀⠀⠀⠀⠀⠀⠀⠀ ⠀= (x+4)(x+2)
Answered by
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☟︎︎︎
First find 2 numbers p & q such that p+q =6 and pq=8
Now x²+6x+8 => x²+4x+2x+8
⠀⠀⠀⠀⠀⠀⠀⠀⠀=x(x+4)+2(x+4)
⠀⠀⠀⠀⠀⠀⠀⠀ ⠀=[x+4] [x+2]
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