Simplify (x + 4) ( x + 1) using the FOIL Method or any other method?

2009-05-23 4:17 pm

Foil Method Preffered

回答 (9)

2009-05-23 4:20 pm

✔ 最佳答案

(x + 4) * (x + 1) =

(x * x) + (x * 1) + (4 * x) + (4 * 1) =

x² + (x + 4x) + 4 =

x² + 5x + 4

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2009-05-24 7:17 pm

x Â² + x + 4 x + 4

x Â² + 5 x + 4

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2009-05-23 6:24 pm

(x + 4)(x + 1)
= x*x + 4*x + x*1 + 4*1
= x^2 + 4x + x + 4
= x^2 + 5x + 4

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2009-05-23 4:57 pm

F-(front x front) O-(outer x outer) I- (inter x inter) L-(last x last)

(x+4)(x+1)
x^2 + 1x + 4x + 4
x^2 + 5x + 4

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2009-05-23 4:35 pm

x^2+4x+x+4

x^2+5x+4

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2009-05-23 4:30 pm

x^2 + 5x + 4

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2009-05-23 4:21 pm

=x^2+5x+4

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2009-05-23 4:21 pm

(x+4)(x+1)

FOIL:

x*x + 1*x + 4*x + 4*1

x^2+5x+4

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2009-05-23 4:20 pm

x^2 + x + 4x + 1
x^2 + 5x + 1

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