Question 17& 18. make x the subject of the formula

17. x = y^2 - 2ay +a^2

18. x = y^2 - a

Step-by-step explanation:

17. Since we want to make x the subject of the formula, we first isolate the square root of x and get

= y - a.

squaring both sides,

x = y^2 - 2ay +a^2

18. Since both x and the a are under the square root, we first start by squaring both sides.

So y^2 = x+a.

Isolating the x, we get

x = y^2 - a

54

step-by-step explanation:

6x9