jazzyfa30
Solve the following by factoring. Make sure to put the answer in the form " x = a or x =b"
x^2 + 5x = 24



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Pradius
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set the equation = 0
thats first step

hartnn
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2 numbers whose sum is 5 and product is 24 are .. ?

jazzyfa30
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idk can they add and subtract

hartnn
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hint : one of the numbers is negative

jazzyfa30
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(1,2,3,4,6,8,12,24)

jazzyfa30
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2 +3

hartnn
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23 will be 1
how about 8 and 3, +8 and 3, sum =... ?

jazzyfa30
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5

hartnn
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8+ (3) will be +5 which we want...

jazzyfa30
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ok

hartnn
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8*(3) =24

hartnn
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so, split up 5x as 8x3x

hartnn
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\(x^2+8x3x24=0\)
can you factor now ?

jazzyfa30
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(x+8)(x3)

hartnn
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\(\huge \color{red}\checkmark\)

hartnn
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so, what are the values of x ?

jazzyfa30
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8 and 3

hartnn
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you got it :)

jazzyfa30
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confused i got it wrong

hartnn
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x = 3 or x =8
must be correct