Factorise
1) 8x^3+27y^3
2) 289a square- 529b square
3) x^2-x-110
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1) 8x³+27y³
=> (2x)³+(3y)³
=> (2x+3y) (4x²-6xy+9y²)
2. 289a²-529b²
=>(17a)²-(23b)²
=> (17a-23b)(17a+23b)
3. x²-x-110
=>x²-11x+10x-110
=> x(x-11)+10(x+11)
=>(x+10)(x-11)
{Hope that it will help you}
=> (2x)³+(3y)³
=> (2x+3y) (4x²-6xy+9y²)
2. 289a²-529b²
=>(17a)²-(23b)²
=> (17a-23b)(17a+23b)
3. x²-x-110
=>x²-11x+10x-110
=> x(x-11)+10(x+11)
=>(x+10)(x-11)
{Hope that it will help you}
mansamaria200:
Thanku
Welcome, what class do u read in? :)
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