Question

simplify the expression
x^7*2/x^5

Answer 1

is it \[x ^{7*2}/x ^{5}\] ?

Answer 2

the 2/x^5 is a faction

Answer 3

so it is \[x ^{7} \times 2\div x ^{5}\] ? is this correct?

Answer 4

yes

Answer 5

ok so \[x^{7}\times2 = x \times x \times x \times x \times x \times x \times x \times 2\]

Answer 6

i do not get that

Answer 7

what is \[2^{2}\]

Answer 8

4

Answer 9

yes, so 2^2 = 2*2 correct?

Answer 10

yes

Answer 11

similarly 2^3 = 2*2*2 and so on. so x^7 = x*x*x*x*x*x*x

Answer 12

oh ok

Answer 13

so x^7/x^5 = x*x*x*x*x*x*x / x*x*x*x*x = x*x = x^2

Answer 14

so 2 * x^7/x^5 = 2x^2

Answer 15

in general, \[x ^{a}/x ^{b} = x ^{a-b}\]

Answer 16

so \[x ^{7}/x ^{5} = x ^{(7-5)} = x ^{2}\]

Answer 17

got it now?

Answer 18

yea a little