हल कीजिए:
`9z^(4)+25=30z^2 `

Factories the following : 4x^(2) + 9y^(2) + 25z^(2) + 12xy + 30 y z + 20 xz

Factorise the following expression: ( i) 4x^(2) +9y^(2) +25z^(2) +12xy +30yz + 20zx (ii) 25x^(2) +4y^(2) +9z^(2) -20 xy +12yz - 30zx

Factorise 4x ^(2) + 9y ^(2) + 25 z ^(2) - 12 xy - 30 yz + 20 zx

Factorise 4x ^(2) + 9y ^(2) + 25 z ^(2) - 12 xy - 30 yz + 20 zx

Factorise 4x ^(2) + 9y ^(2) + 25 z ^(2) - 12 xy - 30 yz + 20 zx

Factorise 4x ^(2) + 9y ^(2) + 25 z ^(2) - 12 xy - 30 yz + 20 zx

Factorise : 9x^(2) + 25y^(2) + 49z^(2) - 30xy - 70 yz + 42 zx

If z = 2 + i, prove that z^(3) + 3z^(2) - 9z + 8 = (1 + 14i) .