Answer:
The correct answer is 21.5
Step-by-step explanation:
Answer:
57.6
Step-by-step explanation:
12 x 0.80 = 9.60
9.60 x 6 = 57.6
• Expand (2a + b)²:
(2a + b)²
= (2a + b) · (2a + b)
Multiply out the brackets by applying the distributive property of multiplication:
= (2a + b) · 2a + (2a + b) · b
= 2a · 2a + b · 2a + 2a · b + b · b
= 2²a² + 2ab + 2ab + b²
Now, group like terms together, and you get
= 2²a² + 4ab + b²
= 4a² + 4ab + b² <——— expanded form (this is the answer).
I hope this helps. =)
Tags: <em>special product square of a sum algebra</em>
Answer:
40
a triangle has 180 degrees
On average one out of 6 customers purchase fantasy books most frequently
