Question

Simplifique: 21!*16!/22!*14!

Answer 1

$\frac{-b+- \sqrt{b²-4.a.c} }{2.a} = \frac{10+ \sqrt{100+96} }{4} =\frac{10+ \sqrt{196} }{4} =\frac{10+ {14} }{4} =\frac{24}{4}= 6$