Question

question 2
factor:
45xy - 25x + 81y - 45
question help: message instructor

Explanation:

Step1: Group terms

Group the first two terms and the last two terms: $(45xy - 25x) + (81y - 45)$

Step2: Factor out GCF from each group

Factor out $5x$ from the first group: $5x(9y - 5)$; factor out $9$ from the second group: $9(9y - 5)$

Step3: Factor out the common binomial factor

Factor out $(9y - 5)$: $(5x + 9)(9y - 5)$

Answer:

$(5x + 9)(9y - 5)$