How do you factor the expression #45x^2 + 30x + 5#?

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Answer 1 · 2015-12-19T00:25:42

First, factor out 5 ...

#5(9x^2+6x+1)#

Next, use grouping ...

#5[9x^2+3x+3x+1]#

#5[3x(3x+1)+(3x+1)]#

#5(3x+1)(3x+1)#

#5(3x+1)^2#

hope that helped