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Question
CBSEHHIMAH8004175

निम्नलिखित गणितीय कथनों में त्रुटि ज्ञात करके उसे सही कीजिए:
left parenthesis 2 straight x right parenthesis squared space plus space 4 left parenthesis 2 straight x right parenthesis space plus space 7 space equals space 2 straight x squared space plus space 8 straight x space plus space 7

Solution

बायाँ पक्ष  =  left parenthesis 2 straight x right parenthesis squared plus 4 left parenthesis 2 straight x right parenthesis plus 7
            equals space 2 straight x space cross times space 2 straight x space plus space 4 space cross times space 2 straight x space plus space 7 
             equals 4 straight x squared plus 8 straight x plus 7
इस प्रकार,  left parenthesis 2 straight x right parenthesis squared plus 4 left parenthesis 2 straight x right parenthesis plus 7 space not equal to space 2 straight x squared plus 8 straight x plus 7 comma लेकिन
  left parenthesis 2 straight x right parenthesis squared plus space 4 left parenthesis 2 straight x right parenthesis space plus space 7 space equals space 4 straight x squared plus 8 straight x plus 7 सही कथन है।