Question

find the value of x when : ​

Answer 1

Answer:

The value of x in

i) 50

ii) 13

Step-by-step explanation:

The value of X when

i) 6x = (28)² - 22²

  6x = 784 - 484

 6x = 300

 x = 300 ÷ 6

 x = 50

ii) 43x = (28)² - 15²

   43x = 784 - 225

  43x = 559

  43x = 559

  x = 559 ÷ 43

 x = 13

Note : Square of 28 = 784

           square of 22 = 484

           square of 15 = 225

Answer 2

Answer:

Refer below.

Step-by-step explanation:

(i)6x=28*28-22*22

=6x=784-484

=6x=300

=x=300/6

=x=50

(ii)43x=28*28-15*15

=43x=784-225

=43x=559

=x=559/43

=x=13