Robert just got his first job and is saving $45 dollars a week. he also has $155 saved from his birthday that just passed. to see how much money he will have in his bank account robert came up with the following expression: 45w+155 , where w is the number of weeks that has been saving.
(a) exactly how much will he have saved in 6 weeks?
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the correct answer option is (2x-3)(2x+3).

step-by-step explanation:

we are given the following expression and we are to factorize it:

we are to find such factors that when multiplied they give a result of 36 (9 x 4 = 36) and when added they give a result of 0.

the two such factors of 36 are negative six and postive six.

factorizing the given expression to get:

therefore, the correct factorization of is (2x-3)(2x+3).