Answer:
- 8
Step-by-step explanation:
Given the expression
(3x² - 5)(4 + 4x²)
Each term from the second factor is multiplied by every term in the first factor, meaning
3x²(4 + 4x²) - 5(4 + 4x²) ← distribute both parentheses
= 12x² + 12
- 20 - 20x² ← combine like terms
= 12 - 8x² - 20
The coefficient for the x² term is - 8
End fraction right brace. I sincerely hope this was helpful! Good luck! <33!
Parce qu'en connaissant les techniques pour identifier les nombres rationnels, vous saurez automatiquement quand un nombre n'est pas rationnel.
Answer:
A is TRUE (44 in² * 2 = 88 in²).
B is FALSE because x(x-3) = 88 for the rectangle or x(x-3)/2 = 44 for the triangle.
C is TRUE if x(x-3) = 88 leads to x² - 3x - 88 = 0.
D is TRUE:
x² - 3x - 88 = 0.
Δ = 9 + 4 * 88 = 361 = 19².
Thus, x = 11 or x = -8 (we discard negative values).
E is FALSE as 11 * 4 ≠ 88.
Step-by-step explanation:
Please correct me if I'm mistaken.
