What is $b$ $b$ in this quadratic equation $3 x^{2} - 15 = 8 x$ $3x^2 - 15 = 8x$ ?

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What is $b$ $b$ in this quadratic equation $3 x^{2} - 15 = 8 x$ $3x^2 - 15 = 8x$ ?

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Answer 1 · 2018-05-10T13:21:24

$b = - 8$ $b=-8$

Explanation:

Given: $3 x^{2} - 15 = 8 x$ $3x^2-15=8x$

Subtract $8 x$ $8x$ from both sides.

$3 x^{2} . - 8 x - 15 = 0$ $3x^2color(white)(".")color(red)(-8)x-15=0$
$ax^2color(white)(".")ubrace(+color(red)(b))x+color(white)("d")c=0$
$color(white)(".d..d")darr$
$color(white)("dd")obrace(+(color(red)(-8)))color(white)("d")->-8$

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What is $b$ $b$ in this quadratic equation $3 x^{2} - 15 = 8 x$ $3x^2 - 15 = 8x$ ?

1 Answer

Explanation:

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What is bbb in this quadratic equation 3x^2 - 15 = 8x3x2−15=8x3x^2 - 15 = 8x?

1 Answer

Explanation:

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What is $b$ $b$ in this quadratic equation $3 x^{2} - 15 = 8 x$ $3x^2 - 15 = 8x$ ?