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leoh1998

  • one year ago

Factor the following trinomial expression by a method of your choice: 3x2 + 7x-10. A. (3x + 2)(x - 5) B. (3x + 5)(x - 2) C. (3x + 1)(x - 10) D. (3x + 10)(x - 1)

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  1. pooja195
    • one year ago
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    Use factor by grouping |dw:1441721205523:dw|

  2. pooja195
    • one year ago
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    \[\huge~\rm~ax^2+bx+c=0\] ^that is standered form :)

  3. leoh1998
    • one year ago
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    thanks

  4. pooja195
    • one year ago
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    so whats -10 times 3 ?

  5. leoh1998
    • one year ago
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    -30

  6. pooja195
    • one year ago
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    |dw:1441721483019:dw| What numbers multiply to -30 but add to 7?

  7. leoh1998
    • one year ago
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    i don't get what you mean

  8. pooja195
    • one year ago
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    What numbers multply to make 30 ? List the factors of -30

  9. leoh1998
    • one year ago
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    -1,30 1,-30 -5,6 -6,5 -15,2 -2,15

  10. leoh1998
    • one year ago
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    10+-3=7

  11. pooja195
    • one year ago
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    good :) (3x+10)(3x-7) then you just look for a common multiply and divide :)

  12. leoh1998
    • one year ago
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    thank you so much

  13. pooja195
    • one year ago
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    :)

  14. pooja195
    • one year ago
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    \(~~~~~~~~~~~~~~~~~~~~~~~~~~\Huge{\color{red}{\heartsuit}\color{orange}{\bigstar}\color{yellow}{\heartsuit}\color{green}{\bigstar}\color{blue}{\heartsuit}\color{purple}{\bigstar}\color{hotpink}{\heartsuit}}\)\(\Huge\bf\color{#FF0000}W\color{#FF4900}e\color{#FF9200}l\color{#FFDB00}c\color{#FFff00}o\color{#B6ff00}m\color{#6Dff00}e\color{#24ff00}~\color{#00ff00}t\color{#00ff49}o\color{#00ff92}~\color{#00ffDB}O\color{#00ffff}p\color{#00DBff}e\color{#0092ff}n\color{#0049ff}S\color{#0000ff}t\color{#2400ff}u\color{#6D00ff}d\color{#B600ff}y\color{#FF00ff}!\)\(~~~~~~~~~~~~~~~~~~~~~~~~~~\Huge{\color{red}{\heartsuit}\color{orange}{\bigstar}\color{yellow}{\heartsuit}\color{green}{\bigstar}\color{blue}{\heartsuit}\color{purple}{\bigstar}\color{hotpink}{\heartsuit}}\)\(\Large\bf\color{Lime}{Please,\ don't\ hesitate\ to\ ask\ questions!}\)\(\Large\bf\color{magenta}{We're\ here\ to\ help!}\Large\color{magenta}{\ddot\smile}\)

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