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zakiaboo

  • 3 years ago

Solve x2 + 9x + 20 = 0. A.x = 2, x = 10 B.x = −2, x = −10 C.x = −5, x = −4 D.x = 5, x = 4

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  1. zakiaboo
    • 3 years ago
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    please help :)

  2. j814wong
    • 3 years ago
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    x=-5,x=-4 \[x ^{x}+9x+20=20\] \[(x+4)(x+5)=0\] It's factoring question.

  3. yummydum
    • 3 years ago
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    factor the trinomial first :) its just like the problem we worked with first :)

  4. zakiaboo
    • 3 years ago
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    thank you @j814wong

  5. j814wong
    • 3 years ago
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    Your welcome

  6. yummydum
    • 3 years ago
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    after you factor, set the two binomials equal to zero and solve for x :D

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