A^2 - b^2 = (a+b)(a-b)
answer :
t^2 - 1
n^2 - 225
Answer:
Step-by-step explanation:
Divide 157 by 8 to see how many groups there are.
157/18=8r13. So you can round up to 9 groups of riders as there is a max of 18 at a time.
Compare Values of 5's:
552, 299 ======> 5, 52,, 299
<u>5 ===> Millions Place</u>
<u>5 ===> Hundred-Thousands</u>
2 ===> Ten-Thousands Place
,
2 =====> Thousands Place
9 ===> Hundreds Place
9 ===> Tens Place
Hope that helps!!! : )
An easy way to do this is to do trial and error.
All possible places to put the bracket:
a) (25 - 8) - 2 = 19 But since BEDMAS goes from left to right with Addition and Subtraction, the equation is unaffected.
b) 25 - (8 - 2) = 19
25 - 6 = 19
Therefore b) is correct.