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nikdorinn [45]
3 years ago
9

Solve the quadratic equation 8x^2+16x+8=0

Mathematics
2 answers:
lozanna [386]3 years ago
6 0

Answer:

<h2>         x = -1</h2>

Step-by-step explanation:

8x^2+16x+8=0                  {divide both sides by 8}

x^2+2x+1=0\\\\a=1\,,\quad b=2\,,\quad c=1\\\\x=\dfrac{-2\pm\sqrt{2^2-4\cdot1\cdot1}}{2\cdot1}=\dfrac{-2\pm\sqrt{4-4}}2=\dfrac{-2\pm0}2=-1

tensa zangetsu [6.8K]3 years ago
3 0

Answer:

8x²+16x+8=0

x²+2x+1=0

D=4-4=0

x0=-2/2=-1

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