Factor the expression over the complex numbers. x2+50

  x² + 50

= x² - (-50)

=            Side note:

= (x + 5i)(x - 5i)

Step-by-step explanation:

We are given that an expression

We have to find the factor of given expression over the complex numbers.

Quadratic formula  fro quadratic equation :

Using the formula

 and

Hence, the factor of is given by

8

step-by-step explanation:

this is a subtraction problem.

10 - 2 = 8

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47