Long Questions (Q17 to Q19)
Q17. The area of rectangle is (12x2-8x3-4x2) cm2. Its width is (3x+1)cm.
Q18. Factorise 12x2- 29xy + 14 y2
Q19. Factorise 6a2- 21a4-12a2
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Q17.
Q18.
Q19.
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