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shayyeatsrainbows

  • 3 years ago

When the quadratic equation y = (x − 3)(4x + 2) is written in standard form, what is the value of the coefficient "b?"

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  1. RyanL.
    • 3 years ago
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    \[y=ax^2+bx+c\]

  2. RyanL.
    • 3 years ago
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    that's standard form.

  3. RyanL.
    • 3 years ago
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    you have to distribute out \[y = (x − 3)(4x + 2) \]

  4. ayushprasad
    • 3 years ago
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    4x^2 -10x -6 -10 is b ( use the standard form)

  5. hartnn
    • 3 years ago
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    simply multiply term by term,and compare with ax*x+bx+c...so 4x*x+(-12+2)x-6...so b is -10

  6. RyanL.
    • 3 years ago
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    wow give answers much guys?

  7. amistre64
    • 3 years ago
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    y = (a+b)(m+n) = am + an + bm + bn = am + (an + bm) + bn

  8. farmdawgnation
    • 3 years ago
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    @hartnn Please try to engage the user in learning, instead of just giving them the answer in the future. Thanks.

  9. hartnn
    • 3 years ago
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    roger that

  10. lgbasallote
    • 3 years ago
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    sadly @shayyeatsrainbows 's not engaging either...

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