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3 years ago

PLEASE ANSWER solve x^(2)+5x+6=0

Mathematics

2 answers:

zhuklara [117]3 years ago

5 0

Use the quadratic formula -b+(square root)b^2-4ac / 2a
a=1, b=5, c=6
-5+(square root)5^2-4(1)(6) / 2(1)
x=-2, x=-3

sammy [17]3 years ago

3 0

Answer:

x = -2 OR x = -3

Step-by-step explanation:

=> $x^2+5x+6 = 0$

Using mid-term break formula

=> $x^2+2x+3x+6 = 0$

=> x(x+2)+3(x+2) = 0

Taking x+2 common

=> (x+2)(x+3) = 0

So Either,

x+2 = 0 OR x+3 = 0

x = -2 OR x = -3

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3 years ago

If f(x)=4x^2 and g(x)=x+1, find (fog)(x)

iren [92.7K]

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Step-by-step explanation:

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To find: $(f_\circ g)(x)$

As we know it is composition function which means that g(x) function is in f(x) function.

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3 years ago

Match each expression in the left column with the correct product in the right column.

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Answer:

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Step-by-step explanation:

1) √4 . √-3 . √-3

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$\sqrt{4} . (\sqrt{-3})^2 = 2 \times -3 =$ -6

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$\sqrt{3} . \sqrt{-3} = (\sqrt{3})^2 . \sqrt{-1}$

$\implies 2 \times 3i =$ 6i

4) √4 . √3 . √3

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denis23 [38]

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