mikaa_toxica13
What are the factors of x2 + 11x + 24?
(x − 6)(x − 4)
(x + 6)(x + 4)
(x − 3)(x − 8)
(x + 3)(x + 8)



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mikaa_toxica13
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can u explain ?

e.cociuba
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My bad hun, it's C.)
x^2  11x + 24 { x^2 means x squared }
= x^2  8x  3x + 24............{ Since, 24 = ( 8) x ( 3) and  11x =  8x  3x }
= x (x  8)  3 (x  8)
= (x  3)(x  8)

e.cociuba
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Wat do ya'll say @skullpatrol

mikaa_toxica13
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*y'all
looks good to me :)

e.cociuba
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Haha Oops srry :) KK :)

mikaa_toxica13
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how about this one =
What are the factors of 3x2 + 10x + 3?
(3x − 1)(x − 3)
(3x − 3)(x − 1)
(3x + 1)(x + 3)
(3x + 3)(x + 1)

e.cociuba
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x+3 and 3x+1 are both factors of the polynomial given.
So, it's C.)

e.cociuba
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3x^2+10^x+3
=3x^2+9x+x+3[by middle term factorization method]
=3x(x+3)+(x+3)
=(x+3)(3x+1)
U can use F.O.I.L as proof.....

skullpatrol
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FOIL is what I showed you on the last question.

e.cociuba
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who??

mikaa_toxica13
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me. good job

e.cociuba
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Do u get it??