Answer:
So AC = 25
Step-by-step explanation:
ABC = LMN
That means AB = LM
BC = MN
AC = LN
We know AB = 41 MN = 38 and LN = 25
AB = LM = 41
BC = MN=38
AC = LN=25
So AC = 25
1: x² + 10x + 25
2: x² - x -12
3: -2x² + 10x
4: -2x² + 9x + 5
5: n² - 4
---------------------------
1: x² + 14x + 49
2: x² - 14x + 49
3: 4n² - 20n + 25
4: 4n² + 20n +25
5: you just have to switch the signs
Standard form is ax^2+bx+c=0
First evaluate the exponent and expand (foil).
y= 3(x^2-4x+4)+1
Then distribute the 3
y= 3x^2-12x+12+1
Combine like terms
y=3x^2-12x+13
Final answer: 3x^2-12x+13=0
