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Nitella [24]
2 years ago
11

Please solve this Solve by completing the square. 4x2+8x−3=0

Mathematics
1 answer:
Greeley [361]2 years ago
7 0

Step-by-step explanation:

4x2+8x−3=0

For this equation: a=4, b=8, c=-3

4x2+8x+−3=0

Step 1: Use quadratic formula with a=4, b=8, c=-3.

x=

−b±√b2−4ac

2a

x= −(8)±√(8)2−4(4)(−3)

2(4)

x= −8±√112

8  x=−1+

1 2 √7 or x=−1+

−1 2 √7

Answer:  x=−1+

1 2√7 or x=−1+

−1 2 √7

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Answer:

Step-by-step explanation:

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<em>(2)</em> × [ - 3 ]

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- 3x - 3y = - 6 .... <em>(4)</em>

<em>(3)</em> + <em>(4)</em>

x = - 5

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<em>( - 5 , 7 )</em>

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<em>(1)</em> ÷ [- 3]

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<em>(- 2, 0)</em>

<u><em>10).</em></u> \left \{ {{x-2y=14} \atop {10x-6y=0}} \right.

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x - 0.6y = 0 ⇒ x = 0.6y -----> <em>(1)</em>

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Now is your turn, you can do it!!

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