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Some winters are summers (I) + All summers are spring(A)= Some winters are spring (I) + All spring are seasons (A)= Some winters are seasons (I) or Some seasons are winters.(I) Hence l follows. All summers are spring.(A)+All springs are seasons (A) = All summers are seasons (A). Hence, II follows.
I. 2p² - 11p + 12 = 0
II. 2q² - 17q + 36 = 0
I. 2x² - 15x + 27 = 0
II. 2y² - 13y + 20 = 0
I. x2 – 7x + 12 = 0
II. y2 – 7y + 10 = 0
I). 4p + 3q = 25
II). 5p + 2q = 26
I. 4x² - 15x + 9 = 0
II. 20y² - 23y + 6 = 0
I. 2x2 + 3x - 9 = 0
II. 3y2 - y - 10 = 0
I. 8a2 – 22a+ 15 = 0
II. 12b2 - 47b + 40=0
I. 2x2– 25x + 33 = 0
II. 3y2+ 40y + 48 = 0
I. 2p2 + 25p – 13 = 0
II. 2q2 – 19q = 2q + 23
I. 4x² - 21 x + 20 = 0
II. 8y² - 22 y + 15 = 0