Answer:
(10a+5)²= 100 a( a+1) + 25
Step-by-step explanation:
<u><em>Explanation:-</em></u>
Given
(10a+5)²
By using (a+b)² = a² +2ab +b²
= (10a)²+ 2 × 10a× 5 + (5)²
= 100a² + 100a + 25
= 100 a( a+1) + 25
b
need the equation
31.42m for a single layer
y=x-1
slope:
==
point slope formula:
y-y1=m(x-x1)
y-(-1)=(x-0)
y+1=x