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Factorise : 8x³ - 27y³ + 125z³ + 90xyz |
| Answer» 8x3−27y3+125z3+ 90xyzUsing,a3+b3+c3−3abc=(a+b+c)(a2+b2+c2−ab−bc−ca)\xa0Here,a=2xb=−3yc=5z,Therefore,=>(2x)3+(−3y)3+(5z)3−3×2x×(−3y)×5z=(2x−3y+5z)(4x2+9y2+25z2+6xy+15yz−10xz) | |