Question

calcule os produtos:
a) x/a+1. y/a-1
b)x+1/x-7. x+1/x+7
c)3/p+2. 2/p+3​

Answer 1

a) x/a + 1 • y/a - 1

xy/(a + 1) • (a + 1)

xy/a² - 1

b) x + 1/x - 7 • x + 1/x + 7

(x + 1)²/(x - 7) • (x - 7)

x² + 2x + 1/(x - 7) • (x - 7)

x² + 2x + 1/x² - 49

c) 3/p + 2 • 2/p + 3

6/(p + 2) • (p + 3)

6/p² + 3p + 2p + 6

6/p² + 5p + 6