Juanita wants participate in 20 km bicycle race. she is considering using 1 of the 2 training programs below: program a: ride 10 km on the first day and increase the distance by an additional 500 m each day program b: ride 7,500 m on the first day and increase the distance by an additional 0.75 km each day. if juanita chooses program a, on which day she ride on the first 15 km for the first time?

She rides 10 kilometer on the first day and 11k on the 3d day I think

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).