If `(2b-7)(2b+7)=1`, what is the value of `2b^(2)`?

Find the value of (b-7)^(2)

Find the value of (b-7)^2

If 5a=6b+7 and a -b =3, what is the value of b/2 ?

A function a satisfies a (-2)=3 and a (3) =8.A function b satisfies b (3) =4 and b (7) =-2. What is the value of a (b(7)) ?

If a+b=7 and ab=12, find the value of a^(2)+b^(2)

If (2a+b)/(a+4b)=3, then find the value of (a+b)/(a+2b)*(2)/(7)(b)(5)/(9)(c)(10)/(7)(d)(10)/(9)

Let a, b and c be real numbers such that a - 7b + 8c = 4 and 8a + 4b - c = 7. What is the value of a^(2) - b^(2) + c^(2) .

If 5b=6a+16 and 9b=7b-20 , then what is the value of 3a-2b ?