" (v) "z-7+7times y-xyz

Factorise z-7 + 7xy - xyz

Factorize z-7 +7xy - xyz

Write the numerical coefficient of (i) ab (ii) -6bc (iii) 7xyz (iv) -2x^(3) y^(2) z

Verify x times(y+z)=x times y+x times z by taking x=(7)/(9),y=(-2)/(5) and z=(-2)/(3)

Add: (i) 3x, 7x (ii) 7y, -9y (iii) 2xy, 5xy, -xy (iv) 3x, 2y (v) 2x^(2), -3x^(2), 7x^(2) (vi) 7xyz, -5xyz, 9xyz, - 8xyz (vii) 6a^(3) , - 4a^(3), 10 a^(3), - 8a^(3) (viii) x^(2) - a^(2), -5x^(2) + 2a^(2), -4x^(2) + 4a^(2)

Factorize: z-7+7xy-xyz

4x times5y times7z