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Ally Perez
Mathematics
29 May, 13:35
Simplify (x+4) ^2 how is this simplified
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Micah Espinoza
29 May, 13:36
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Is known that
(a + b) ² = a² + 2. a. b + b²
So:
(x + 4) ² = x² + 2. x. 4 + 4² = x² + 8x + 16
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Marcelo Daugherty
29 May, 13:49
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Answer: x^2 + 8x + 16
Explanation:
each term in the second bracket must be multiplied by each term in the first bracket
⇒ (x + 4) ^2 = (x+4) (x+4) ⇒ (x+4 (x+4)
=x (x+4) + 4 (x+4)
= (x*x) + (x*4) + (4*x) + (4*4)
=x2+4x+4x+16
=x^2+8x+16
That's all
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