Question

7. Find the value of x.
a) 5x = (45)2 - (40)2​

Answer 1

Step-by-step explanation:

) 5x = (45)2 - (40)2

5x=90-800

5x=10

x=2

Answer 2

Step-by-step explanation:

5x=(45)2 -(40)2

5x=90-80

5x=10

x=10/5

x=2