1. 7x(x + 3)
7x(x) + 7(3)
7x² + 21
2. (7x + 1)(x + 3)
7x² + 21x + x + 3
7x² + 22x + 3
3. (x² + x)²
(x² + x)(x² + x)
x^4 + x³ + x³ + x²
x^4 + 2x³ + x²
Answer:
1.5 * 3 * 2.1
9.45
Step-by-step explanation:
Volume is equal to lenght * width * height
So multiply every number together
the answer is 9/6 or 1 1/2
