I need solutions for all of them

9. If the value of the expression (3x 1)2 is even number. Then which one of the followings is even? A) x2 -3x+1 B) 9x2-2x C) 5x-2x2 D) 6x+5 E) 7x2 +5x 10.le is even and y is odd, which expression is odd? A) x2 + 3y B) 3x+ 2y2 C) x+y+ l D) (x+y)2+ 3 E) (lay)2 11.Find a+b, ifW E = 133. A)? ms m4 m5 as 12.Find a+b, if = 2a + 4b. 13.Find b-a, HE = 3a + 2b. 14. If xy04 = W = a (Remainder b), find the product ab. 15. If 5940 is divisible by the difference of abode and adcbe (b>d), find the sum of all possible whole values of (b-d)