Question

If X = [(+ 2) + (– 4)] + [(– 9) + (+ 5)], Y = [(– 9) + (+ 3)] + [(– 2) + (– 4)], then the value of (X +
Y) × (X – Y) + [(X + Y) – (X – Y)] is :


(A) – 134

(B) – 132

(C) – 136

(D) – 138

please choose correct option​

Answer 1

D is the correct answer

Answer 2

Answer is option A

Step-by-step explanation:

• x=(2-4)+(-9+5) =-2-4 =-6
• y=(-9+3)+(-2-4) =-6-6 -12
• [(x+y)(x-y)]+[(x+y)-(x-y)]
• =(-6-12)(-6+12)+(-6-12)-(-6+12)
• =(-18)(6)+(-18)-(6)
• -108+(-24)
• -108-24
• =-132