Note: a² - b² = (a-b)(a+b)
9x² - 16y² = (3x)² - (4y)² = (3x - 4y)(3x + 4y)
What is the acutal question
4x+4 you have to distribute it
Like terms are terms with the exact same variables, and the exact same degree of each variable...simply put, the exponents of each variable have to be exactly the same.
The given term 12 ad³ has variables a and d. a has a degree of 1 and d has a degree of 3.
The term 3ad³ has the same variables and the same degree, and is therefore the like term.
1 ft = 12 inches
20 ft = 240 inches
240/2.3 x 5.1 = 532 inches
532 / 12 = 44.3 ft
Actual house is 20 ft high and 44 feet wide
