-2a^2
It is [(2a+2h+5) - (2a+5)]/h = 2h/h = 2
20 = 1Consider what is the value of 2a ÷ 2a? Any number divided by itself is 1. Thus:2a ÷ 2a = 1The law of indices says that when dividing, they are subtracted, for example:25 ÷ 22 = (2 x 2 x 2 x 2 x 2) ÷ (2 x 2) = 2 x 2 x 2 = 23 = 25-2So 2a ÷ 2a is (also):2a ÷ 2a = 2a-a = 20Since any number subtracted from itself is 0 (= a - a). This must have the same value as before, thus:20 = 1The 2 above can be replaced by any number x which means that any number to the power 0 is 1:x0 = 1
a + a + a - 2a = 3a - 2a = a
3+2*A+B*4/2-4 = 3 + 2A + 2B - 4 = 2A + 2B - 1
(6ab + 9b)/(2a + 3) = 3b(2a + 3)/(2a + 3) = 3b
2a x 3b = 6ab
4ab - 2a - 7
2a x 3b = 6ab
6ab / 3b = 2a so b / b cancels each other out 6 / 3 = 2 / 1 Example: a = 4 and b = 5 6ab = 6 x 4 x 5 = 120 3b = 3 x 5 = 15 120 / 15 = 24 / 3 = 8 = 2a = 2 x 4
144a2b
With the assumption your asking what a or b are in terms of each other. a=3b/(6b-2) b=2a/(6a-2)
-2a^2
Assuming that non-leading numbers are exponents, the expression becomes12a^2b + 8a - 5a^2b + 2ab - 4ab^2 + 6ab - 2a - 3ab= 7a^2b + 6a + 5ab - 4ab^2= a*(7ab + 6 + 5b - 4b^2)
2
5a2 + 6ab=a(5a+6b)
6ab-3b factorize = 3