InterviewSolution
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InterviewSolution
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Use direct method to evaluate : `(i) (x+y)(x-y) " " (ii) (4+x)(4-x) " " (iii) (2x-1)(2x+1) " " (iv) (xy+a)(xy-a)` `(v) ((x)/(2)-(y)/(2))((x)/(2)+(y)/(3)) " " (vi) (x+y)(x-y)(x^(2)+y^(2))`. |
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Answer» Correct Answer - `(i) x^(2)-y^(2) " " (ii) 16-x^(2) " " (iii) 4x^(2)-1 " " (iv) x^(2)y^(2)-a^(2)` `(v) ((x^(2))/(4)-(y^(2))/(9)) " " (vi) x^(4)-y^(4)` |
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