Answer:
x² - 7x - 18
Step-by-step explanation:
Remember to follow FOIL.
First, multiply the first. (x)(x) = x²
Next, multiply the second. (x)(2) = 2x
Then, multiply the third. (-9)(x) = -9x
Finally, multiply the last. (-9)(2) = -18
Combine like terms: x² + 2x - 9x - 18
x² - 7x - 18
x² - 7x - 18 is your answer.
~
Answer: x=4
Step-by-step explanation:
1.5(x+4)-3=(x-2)
1.5x+6)-3=4.5x-9
1.5x+3=4.5x-9
+9 +9
1.5x+12=4.5x
divide 1.5x and 4.5
12=3x
/3 /3
x=4
True
isosceles triangles
have 2 equal sides
28 because we are talking about TENS meaning there can only be 2 digits