Help me if you are good with standard form!

Step-by-step explanation:

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Hope I helped ! ♡

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(x +4) (x² + x - 2)

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standard form (ax³ + bx² + cx + d)

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#look pic for more details to understand, in my country his method name is crab claws

(x + 4) (x² + x - 2) =

x³ + x² - 2x + 4x² + 4x - 8 =

x³ + 5x² + 2x - 8

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step-by-step explanation:

quartic functions has x = –1 and x = –2 as its only two real zeroes:

f(x) = a(x+2)(x+1)   a: real number

i dont know men

step-by-step explanation: