Question

Complete the square 2 x 2 + 16 x − 7
Put into the form of p(x+q)^2

Answer 1

• 2(x + 4)² - 39

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Given expression:

• 2x² + 16x - 7

Complete the square as following:

• 2x² + 16x - 7 =
• 2(x² + 8x) - 7 =
• 2(x² + 2*4x + 4² - 4²) - 7 =
• 2(x + 4)² - 2×4² - 7 =
• 2(x + 4)² - 32 - 7 =
• 2(x + 4)² - 39