9. Y = X2 + 8X +16 A. TWO RATIONAL REAL SOLUTIONS B. TWO IRRATIONAL REAL SOLUTIONS C. TWO IMAGINARY SOLUTION D. ONE REAL SOLUTION

Ruzenhack asked Mar 8, 2022

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3 votes

9. Y = X2 + 8X +16

A. TWO RATIONAL REAL SOLUTIONS
B. TWO IRRATIONAL REAL SOLUTIONS
C. TWO IMAGINARY SOLUTION
D. ONE REAL SOLUTION

Ruzenhack asked Mar 8, 2022

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17 votes

Answer:

Explanation:

y = x² + 8x + 16 ← is a perfect square

y = (x + 4)²

To obtain the solutions equate to zero

(x + 4)² = 0 , then

x + 4 = 0 ( subtract 4 from both sides )

x = - 4 ← one real solution

Yangsuli answered Mar 14, 2022

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