Answer:
= 25x² - 40x + 16
Step-by-step explanation:
(5x - 4)²
= (5x - 4) (5x - 4)
= 25x² - 20x - 20x + 16
= 25x² - 40x + 16
Hope this helps :)
Let me know if there are any mistakes!!
X^2 - 5x - 7 = 0
x = (-b (+-) b^2 - 4ac) / 2a
a = 1, b = -5, c = -7
x = (-(-5) (+-) sqrt (-5^2) -4(1)(-7)) / 2(1)
x = (5 (+-) sqrt 25 + 28) / 2
x = (5 (+-) sqrt 53) / 2
Answer: 1,296 candles
Step-by-step explanation:
48 cartons have been packed yet only 30 have been loaded. The cartons still left are;
= 48 - 30
= 18 cartons
Each carton holds 72 candles so the candles that have not yet been loaded are:
= 18 * 72
= 1,296 candles
Answer:
448
Step-by-step explanation:
Multiply 56 by 8 to find the total amount of money
