Question

how do i simplify 2x^2/7x2*21y^11/5x^9

Answer 1

You must use brackets for better understanding

Answer 2

(2x^2/7x^2)*(21y^11/5x^9)

Answer 3

do I just make the reciprocal in the second pair of brackets

Answer 4

w8 sorry..I've made smth wrong

Answer 5

ok well any help on this problem will be great

Answer 6

\[2x^2/7x^2*21y^11/5x^9=4y^11/35x^9\]

Answer 7

thanks that really helped

Answer 8

how were you wrong

Answer 9

\[\frac{2x^2}{7x^2}\times \frac{21y^{11}}{5x^9}=\frac{2x^2 \times x^{-2}\times x^{-9}\times 21y^{11}}{7\times 5}=\frac{2x^{2-2-9}\times21y^{11}}{7\times5}=\frac{6}{5}x^{-9}y^{11}=\frac{6}{5}\frac{y^{11}}{x^9}\]