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What should be added to `2xy-3x^(2)+6` so that the sum is `4x^(2)-7xy+15`? |
Answer» Correct Answer - `7x^(2) - 9xy +9` Let f(x) should be added to `2xy-3x^(2)+6`, so tha rthe sum is `4x^(2)-7xy+15` `f(x) =4x^(2)-7xy+15-(2xy-3x^(2)+6)` `=4x^(2)-7xy+15-2xy+3x^(2)-6` `(4x^(2)+3x^(2))+(-7xt-2xy)+(15-6)` `=7x^(2)-9xy+9` |
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