51 ÷ r = (- 51). Find 'r'
r = 2
r = 1
r = -1
r = 3
51 ÷ (-1) = (-51) [∵51−51=(−1)]
Find the value of:
p + q + 3r, when p = 1, q = 5, r = 2.
Let r be a root of the equation x2+ 2x + 6 = 0. The value of (r + 2) (r + 3) (r + 4) (r + 5) is equal to.