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keegq

  • 2 years ago

simplify and write in standard form (2x^2-6X-5)(3-x)

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  1. shivam_bhalla
    • 2 years ago
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    @keegq ,apply the distributive property. (3)(2x^2-6X-5) - (x)(2x^2-6X-5) now open up the brackets and simplify

  2. keegq
    • 2 years ago
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    6x^2-18x-15-2x^2+6x^2+5x

  3. shivam_bhalla
    • 2 years ago
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    keegq, check again . is it -2x^2 ??

  4. keegq
    • 2 years ago
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    +2x^2

  5. shivam_bhalla
    • 2 years ago
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    @keegq I meant check the power of x in 2x^2. It is wrong

  6. keegq
    • 2 years ago
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    2x^3

  7. shivam_bhalla
    • 2 years ago
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    @keegq . Yes it should be 6x^2-18x-15-2x^3+6x^2+5x Now add up all the x^2 terms and x terms separately and tell me what you get

  8. keegq
    • 2 years ago
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    2x^3+12x^2-13x-15

  9. shivam_bhalla
    • 2 years ago
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    Almost right. Check the sign of 2x^3 term. It should be -2x^3 So your answer should be -2x^3+12x^2-13x-15

  10. keegq
    • 2 years ago
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    Ok thanks!

  11. shivam_bhalla
    • 2 years ago
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    np :)

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