Expand the following using identities: (5x+4y)(5x-4y)

Expand (a -b +c)²

Expand (2x +3y+ 4z)²

Find the product of (2x+3y+4z)(4x²+9y²+16z²- 6xy -12yz - 8zx)

Evaluate 10³-15³+5³

Expand the following: (x+2y+3z)²

Find the expansion of the following: (5 + 4m)(4m + 4)(−5 + 4m)

Expand: (2a + 3b)³

If \(a+\frac { 1 }{ a } \) = 6, then find the value of \({ a }^{ 3 }+\frac { 1 }{ { a }^{ 3 } } \) .

If \({ x }^{ 2 }+\frac { 1 }{ { x }^{ 2 } } \)= 23, then find the value of \(x+\frac { 1 }{ x } \) and \({ x }^{ 3 }+\frac { 1 }{ { x }^{ 3 } } \) .