X sqaured plus 4x plus 20 equlas 12x minus 5
2 answers:
Answer:
No real roots/solutions
Step-by-step explanation:
x² + 4x + 20 = 12x - 5
x² - 8x + 25 = 0
Using quadratic formula:
b² - 4ac = (-8)² - 4(1)(25) = -36
Since sqrt(-36) is not a real no.,
This equation has no real roots
Answer:
x² + 4x + 20 = 12x - 5
x² + 4x - 12x + 20 + 5 = 0
x² - 8x + 25 = 0
Δ = √b² - 4ac
= √(-8)² - 4×1×25
= √64-100
= √(-36)
x ∉ R
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