Given that a^2-b^2=0280 and a+b = 20, find the value of a-b.
2 answers
Correction a^2-b^2 = *-280*
well,
a^2 - b^2 = (a+b)(a-b)
-280 = 20(a-b)
finish it up
a^2 - b^2 = (a+b)(a-b)
-280 = 20(a-b)
finish it up