if a=3x2-2y2+4xy, b= - 7x2+4y2 - 3xy, c= - 11x2+8y2+9xy, d= 7x2-6y2-8xy then show a+b=c+d
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jkkl you have a good idea for all your channel ka matalab the answer 2+1 *2-3
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