To solve by factoring, we need to find two numbers that multiply to 7 and add up to 8. These numbers are 1 and 7.
Therefore, the factored form of the equation is: (m + 1)(m + 7) = 0
Setting each factor to zero:
m + 1 = 0
m = -1
m + 7 = 0
m = -7
So the solutions are m = -1 and m = -7. Therefore, the correct choice is c. -7,-1.
solve by factoring. m^2 + 8m + 7 = 0
a. 8,7
b. -7,1
c. -7,-1
d. 7,1
1 answer
1 answer