Find the following product: (i) (3 x +2 y +2 z ) (9 x 2 +4 y 2 +4 z 2 -6 xy -4 yz -6 zx ) (ii) (4 x -3 y +2 z ) (16 x 2 +9 y 2 +4 z 2 +12 xy +6 yz -8 zx ) (iii) (2 a -3 b -2 c ) (4 a 2 +9 b 2 +4 c 2 +6 ab -6 bc +4 ca ) (iv) (3 x -4 y +5 z )(9 x 2 +16 y 2 +25 z 2 +12 xy -15 zx +20y z )

Question

Philoid · Accepted Answer

(i) Using the identity,

(ii) Using the identity,

(iii) Using the identity,

(iv) Using the identity,

Find the following product:(i) (3x+2y+2z) (9x2+4y2+4z2-6xy-4yz-6zx)(ii) (4x-3y+2z) (16x2+9y2+4z2+12xy+6yz-8zx)(iii) (2a-3b-2c) (4a2+9b2+4c2+6ab-6bc+4ca)(iv) (3x-4y+5z)(9x2+16y2+25z2+12xy-15zx+20yz)

Find the following product:
(i) (3x+2y+2z) (9x²+4y²+4z²-6xy-4yz-6zx)

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

(iii) (2a-3b-2c) (4a²+9b²+4c²+6ab-6bc+4ca)

(iv) (3x-4y+5z)(9x²+16y²+25z²+12xy-15zx+20yz)