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3 years ago

Correct answer gets brainlest

Mathematics

2 answers:

AnnZ [28]3 years ago

8 0

19(25x2)
= 19(50)

19 x 50

(10x50) + (9x50)

number 1 and 4 and 6

Leona [35]3 years ago

4 0

Answer:

1. 19(25x2)

Step-by-step explanation:

19 x 25 = 475

475 x 2 = 950

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Solve 2x^2 + x - 4 = 0 <br> X2 +

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Answer:

$\large \boxed{\sf \ \ x = -\dfrac{\sqrt{33}+1}{4} \ \ or \ \ x = \dfrac{\sqrt{33}-1}{4} \ \ }$

Step-by-step explanation:

Hello, please find below my work.

$2x^2+x-4=0\\\\\text{*** divide by 2 both sides ***}\\\\x^2+\dfrac{1}{2}x-2=0\\\\\text{*** complete the square ***}\\\\x^2+\dfrac{1}{2}x-2=(x+\dfrac{1}{4})^2-\dfrac{1^2}{4^2}-2=0\\\\\text{*** simplify ***}\\\\(x+\dfrac{1}{4})^2-\dfrac{1+16*2}{16}=(x+\dfrac{1}{4})^2-\dfrac{33}{16}=0$

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Hope this helps.

Do not hesitate if you need further explanation.

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3 years ago

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Dmitry_Shevchenko [17]

Answer:

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