Answer:
-9
Step-by-step explanation:
A negative times a positive make a negative outcome. (Using rule of integers)
2×4.5=9
Make it negative to get -9
So first, i like to answer the question first. 17 times 6 = 102. So you can use 1 100 model/block and 2 ones :)
Distribute to eliminate the parenthesis
x^2 + 2x + 6x + 12 = 60
Combine like terms
x^2 + 8x + 12 = 60
Subtract 60 from both sides
x^2 + 8x - 48 = 0
Factor the equation
(x+12)(x-4)=0
x+12=0
x+4=0
x= -12 and -4