tylerspettingzo tylerspettingzo

23-03-2018
Mathematics

contestada

math help please show work

1. 10m^{5} +5m^{4}-25^{2} factor completely

2. x^{2} - 18x +81

3. 9x^{2} -49y^{2}

Respuesta :

choixongdong choixongdong

23-03-2018

1. 10m^5 +5m^4 - 25^2 = 5m^2(2m^3 + m^2 - 5)
2. x^2 - 18x + 81 = x^2 - 2*x*9 + 9^2 = (x - 9)^2
3. 9x^2 -49y^2 = (3x)^2 - (7y)^2 = (3x + 7y)(3x - 7y)

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