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6.what are the factor of m²-9?
a.(m-3)
b.(m+3)(m-3)
c.(m+9)(m-9)
d.(m-3)²​


Sagot :

Answer:

B. (m+3) (m-3)

Step-by-step explanation:

m² - 9

Write the number in the exponential form with an exponent of 2.

- 3²

Then Factor the expression.

(m + 3) (m - 3)

Answer:

B.

Step-by-step explanation:

equation: (m+3) (m-3)

answer = m × m = m²

+3 × -3 = 9

short reminder ( In multiplication negative × positive is always negative no matter how large the value is. however positive × positive is positive. negative × negative is still positive. )