Sunday

March 29, 2015

March 29, 2015

Posted by **Anonymous** on Monday, September 26, 2011 at 12:20pm.

€

(a + b)2 = a2 + 2ab + b2, , he can find a

similar equation for

€

(a − b)2 . Examine his argument. If it is correct, supply any

missing steps or justification; If it is incorrect point out why.

€

(a + b)2 = [a + (−b)]2

= a2 + 2a(−b) + (−b)2

= a2 − 2ab + b2

Mathematical Connections 5‐3

2. a.

- math -
**Henry**, Tuesday, September 27, 2011 at 5:07pmYour calculations show that the 2 expressions are similar, but your Eq should be (a-b)^2.

**Answer this Question**

**Related Questions**

math - Kahlil said that using the equation (a + b)2 = a2 + 2ab + b2, he can find...

math 213 - Kahlil said that using the equation he can find a similar equation ...

Algebra - Why does this happen? A=3 and b=2 A+b=c is the equation. Multiplying ...

calculus - Find an equation for the surface consisting of all points P(x, y, z) ...

Physics help - A wave is described by the equation y = (4.5×10−2) sin (1....

algebra - Which choice is the equation of a line that passes through the point (...

ALGEBRA - Bill is solving the equation 26x−21(6x+51)=40(11x+139). The ...

algebra ll - Which choice is the equation of a line that passes through the ...

MATH - Find all real solutions of the equation by first rewriting the equation ...

Chemistry - Write a nuclear equation for the indicated decay of each of the ...