+0

# help

0
69
2

If (a + b)^2 = (a - b)^2, what can you say about a and b?

Jun 18, 2020

### 2+0 Answers

#1
+9791
+2

If (a + b)^2 = (a - b)^2, what can you say about a and b?

b=0

!

Jun 18, 2020
#2
+8336
0

$$(a + b)^2 = (a - b)^2\\ (a + b)^2 - (a - b)^2 = 0\\ \text{Using }a^2 - b^2 = (a - b)(a + b),\\ (2a)(2b) = 0\\ ab = 0\\ a = 0\text{ or } b = 0$$

.
Jun 18, 2020