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### MEAP Preparation - Grade 7 Mathematics2.63 Subtraction of Trinomials - I

 Example: Subtract 3a2+2ab+5b2 from 9a2+7b2. Solution: (9a2+7b2) - (3a2+2ab+5b2) = 9a2 + 7b2 - 3a2 - 2ab - 5b2 = 6a2+2b2+2ab. Directions: Given the following trinomials, solve the subtraction problems given in the questions. A = x+y-z B = y+z-x C = z+x-y D = 2x+3y-z E = 7x-8y
 Q 1: A - D = _____ ?2x-2yx-3yx-2y-x-2y Q 2: D - A = _____ ?2x-2yx-2yx-3yx+2y Q 3: A - E = _____ ?6x-9y+z8x+9y+z-6x+9y-z6x+9y+z Q 4: E - B = _____ ?8x-9y+z8x+9y+z8x-9y-z8x+9y-z Q 5: E - C = _____ ?-6x-7y6x-7y-z-6x+7y-6x+7y+z Q 6: A - B = _____ ?-2x+2z2x-2z2x+2z2x+2z Q 7: C - A = _____ ?2z-2y2z+2y3z+2yx-2y Q 8: E - A = _____ ?6x+9y+2z6x-9y-z6x+9y+z6x-9y+z Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!

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