Question

5. Factorise:
(1) 4x2 +9y2 + 1622 + 12xy - 24yz-16xz​

Answer 1

Answer:

(i) 4x

2

+9y

2

+16z

2

+12xy−24yz−16xz

=(2x)

2

+(3y)

2

+(−4z)

2

+2(2x)(3y)+2(3y)(−4z)+2(−4z)(2x)

=(2x+3y−4z)

2

=(2x+3y−4z)(2x+3y−4z)