shayyeatsrainbows
When the quadratic equation y = (x − 3)(4x + 2) is written in standard form, what is the value of the coefficient "b?"



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RyanL.
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\[y=ax^2+bx+c\]

RyanL.
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that's standard form.

RyanL.
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you have to distribute out \[y = (x − 3)(4x + 2) \]

ayushprasad
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4x^2 10x 6
10 is b ( use the standard form)

hartnn
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simply multiply term by term,and compare with ax*x+bx+c...so 4x*x+(12+2)x6...so b is 10

RyanL.
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wow give answers much guys?

amistre64
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y = (a+b)(m+n)
= am + an + bm + bn
= am + (an + bm) + bn

farmdawgnation
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@hartnn Please try to engage the user in learning, instead of just giving them the answer in the future. Thanks.

hartnn
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roger that

lgbasallote
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sadly @shayyeatsrainbows 's not engaging either...