Question

please help
1)16b²-60by+25y²
2)4m²+24m+9
3)9x²y²+6xyz+z²​

Answer 1

Answer:

1)(4b-5y)*(4b-5y)

2)(2m+3)*(2m+3)

3)(3xy+z)*(3xy+z)

Answer 2

Answer:

1)16b²-60by+25y²

=16b²+25y²-60by

=(4b)²+(5y)²-60by

=(4b+5y)²-2.4b.5y-60by

=(4b+5y)²-40by-60by

=(4b+5y)²-100by

.........and then I can't do