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Mathematics 7 Online
OpenStudy (anonymous):

9x² y² - 3x² -5 from the sum of 9x² y² +11x²+5 and 11x² y² -6x² +2 complete solution pls

OpenStudy (radar):

Sum the last two expressions (add) 9x^2y^2 + 11x^2 +5 11x^2Y^2 - 6x^2+2 -------------------- 20x^2y^2 + 5x^2 + 7 Now do the subtraction -( 9x^2Y^2 -3x^2 - 5) ---------------------- 11x^2y^2 +8x^2 +12

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