Question

Factorise 16ײ + 40 x y + 25 y -1​

Answer 1

Step-by-step explanation:

ree gat no to mat de to mat de to mat de to mat de to mat

Answer 2

25x2+16y2+4z2−40xy+16yz−20xz

=(−5x)2+(4y)2+(2z)2+2(−5x)(4y)+2(4y)(2z)+2(−5x)(2z)

Suitable identities is ( x + y + z ) 3 = x 3 + y 3 + z 3 + 2 x y + 2 y z + 2 x z

Therefore,(−5x)2+(4y)2+(2z)2+2(−5x)(4y)+2(4y)(2z)+2(−5x)(2z)

=(−5x+4y+2z)2