Answer:
i) 2x² + 4x + 7x + 14
= 2x² + 11x + 14
ii) 2x² - 5x - 12x + 30
= 2x² - 17x + 30
C. 2.19
Step-by-step explanation:
x^2 - 10x + 25
+49=(x+ 7)^2
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