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Aaron0620

  • 3 years ago

Simplify the expression: (5x2 + 3x + 4) − (2x2 − 6x + 3). If the final answer is written in the form Ax2 + Bx + C, what is the value of B?

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  1. shashi20008
    • 3 years ago
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    B = 9. subtract the corresponding powers in both polynomials...

  2. lgbasallote
    • 3 years ago
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    distribute the minus: \[5x^2 + 3x + 4 - 2x^2 -(-6x) - 3\] \[5x^2 + 3x _ 4 - 2x^2 + 6x + 3\]

  3. lgbasallote
    • 3 years ago
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    that's supposed to be minus 3

  4. lgbasallote
    • 3 years ago
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    ugh \(5x^2+ 3x + 4 - 2x^2 + 6x -3\) is the last line

  5. Aaron0620
    • 3 years ago
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    so its 9?

  6. lgbasallote
    • 3 years ago
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    i would say yes

  7. lgbasallote
    • 3 years ago
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    @jazy i think you forgot to distribute the minus sign

  8. Aaron0620
    • 3 years ago
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    thank you guys

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