Answer:
p = ½ (x₁ + x₂)
q = a (x₁x₂ − ¼ (x₁ + x₂)²)
Step-by-step explanation:
y = a (x − x₁) (x − x₂)
Expand:
y = a (x² − x₁x − x₂x + x₁x₂)
y = a (x² − (x₁ + x₂)x + x₁x₂)
Distribute a to the first two terms:
y = a (x² − (x₁ + x₂)x) + ax₁x₂
Complete the square:
y = a (x² − (x₁ + x₂)x + ¼(x₁ + x₂)²) + ax₁x₂ − ¼ a(x₁ + x₂)²
y = a (x − ½ (x₁ + x₂))² + a (x₁x₂ − ¼ (x₁ + x₂)²)
Therefore:
p = ½ (x₁ + x₂)
q = a (x₁x₂ − ¼ (x₁ + x₂)²)
Answer:
Step-by-step explanation:
Here you go mate
Step 1
-3[5-(-8+6)] Equation/Question
Step 2
-3[5-(-8+6)] Simplify
(-3)(7)
Step 3
(-3)(7) Multiply
-21
Answer
-21
Hope this helps
Solution in an attachment.
x = -4; y = -2; z = 4
1: -17 + 15 = -2 P = -17
2: 8 x -8 = -64 y = -8
3: -2 x 6 = -12
4: 8 - (-4) = 12
Hope I Helped
Answer:
c) 2/15
Step-by-step explanation:
LA= 2/3 = 10/15
S=1/5 = 3/15
15/15 - 13/15 = 2/15
Math books= 2/15
