Which of the following is not the possible way of data

If (a + b) = 1 and (1/a) – 2b = 5/a then find the value of a² + b².

? + (35)² = (130)² - (45)² - 2850

If a = 2 + √3, then the value of (a⁶ + a⁴ + a² + 1)/a³ is

If x ⁸  + x ^-8  = 194, then find the value of (2x ²  – 4) ²  – 1.

If (x² + y² + z² - 4x + 6y + 13) = 0, then find the value of (x + y + z).

If x = 19, then the value of x⁵ - 20x⁴ + 20x³ - 20x² + 20x - 1 is

If (4x + 3y): (28x - y) = 1: 5, then what is the value of (3x ²  + 4y ² ): (7x ²  + 2y ² )?

when x =5 and y =-7 then find the value of 27x³ +58x²y +31xy² +8y³?