If .A= x R: x^2+6 x-7 0 and B= x R: x^2+9 x+14 0 , then which of the following is/ are correct? 1. (A B)=(-2,1) 2. (A / B)=(-7,-2) Select the correct answer using the code given below:

Step-by-step solution

aligned & x ^2+6 x -7 0 & ( x +7)( x -1) 0 & x =(-7,1) & A = -6,-5,-4,-3,-2,-1,0 & x ^2+9 x +14 0 & ( x +7)( x +2) 0 & x =(- ,-7) (-2, ) & B = R - -7,-6,-5,-4,-3,-2 aligned So A B=(-2,1)