Question

13. Which of the following is the correct factorization for the given algebraic expression m²-4m-45? *

Answer 1

Step-by-step explanation:

where are the options ?????

it's answer is

m²-(9m-5m)-45

m²-9m+5m-45

m(m-9)+5(m-9)

(m-9)(m+5)

m=9or-5

Answer 2

Step-by-step explanation:

${m }^{2} - 4m - 45 \\ = {m}^{2} - 9m + 5m - 45 \\ = m(m - 9) + 5(m - 9) \\ = (m + 5)(m - 9)$

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