So the equation would be “a squared +4 squared=8 squared.” Then you would square 4 which would be 16 and 8 which would be 64. Now the equation is a squared+ 16=64 the rest is basic algebra. Subtract 16 from 64 which is 48. Now you have a squared= 48. You get the square root of both sides so now you have the square root of a is 6.9. I’m pretty sure that’s how you do it. I apologize if I’m incorrect.
X=30 subtract the x and then you get 1x=30 which is x=30
Same is the answerso it means equal to
97/2 = 48.5
take the whole number below and above that
48 + 49 = 97
