Question

Show that: (3x+7)²-84x=(3x-7)²​

Answer 1

Answer:

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Answer 2

Answer:

• x= -98/84

Step-by-step explanation:

• (3x+7)² - 84x = (3x-7)²
• 9x²+49 - 84x = 9x²-49
• 9x²-9x² -84x = -49-49
• -84x = 98
• x= -98/84