Question

what will its zeroes​

Answer 1

Answer:

x = 18 & -18.2

Step-by-step explanation:

5n² + n - 1638 = 0

Let's go with formula method.

a = 5

b = 1

c = -1638

x = -b ±√b²- 4ac ÷ 2a

x = - 1 ±√1² - 4 × 5 × -1638 ÷ 2× 5

x = -1 ± √1 + 32760 ÷ 10

x = -1 ± √32761 ÷ 10

x = -1 ± 181 ÷ 10

x = - 1 + 181 ÷ 10                      x = -1 - 181 ÷ 10

x = 180 ÷ 10                            x = -182 ÷ 10

x =  18                                     x = -18.2

∴ The two zeroes are 18 & -18.2

Answer 2

Answer:

Step-by-step explanation:

See The Pic For Solution

Any Problem Ask Me On Comment Box