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2 years ago

14

Can you help me solve 5(X+2)²= 4(X+3)

1 answer:

icang [17]2 years ago

8 0

Answer:

5X²+16X+8=0

Step-by-step explanation:

5(X+2) (X+2)=4(X+3)

5(X²+2X+2X+4)=4(X+3)

5(X²+4X+4)=4(X+3)

5X²+20X+20=4X+12

5X²+20X-4X+20-12=0

5X²+16X+8=0

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Need help with my work pleasem

Galina-37 [17]

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: . $1 \frac{1}{2} / \frac{3}{4} = 2
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Thus one can say m would be
$\frac{1}{2} * 2 = 1$

And N would be
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7 0

3 years ago

(1+cos2x)/(1-cos2x) = cot^2x

sesenic [268]

We will turn the left side into the right side.

$\dfrac{1 + \cos 2x}{1 - \cos2x} = \cot^2 x$

Use the identity:

$\cos 2x = \cos^2 x - \sin^2 x$

$\dfrac{1 + \cos^2 x - \sin^2 x}{1 - ( \cos^2 x - \sin^2 x)} = \cot^2 x$

$\dfrac{1 - \sin^2 x + \cos^2 x }{1 - \cos^2 x + \sin^2 x} = \cot^2 x$

Now use the identity

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$\dfrac{2\cos^2 x}{2\sin^2 x} = \cot^2 x$

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8 0

3 years ago

-6-5[-4-(6+12)]+(-5)

Luden [163]

Answer:

99

Step-by-step explanation:

-6-5[-4-(6+12)]+(-5)

Following PEMDAS

We work the parentheses from the inside out

-6-5[-4-(18)]+(-5)

-6-5[-22]+(-5)

Now we multiply

-6+110 -5

Now we add and subtract from left to right

104 -5

99

6 0

4 years ago

A car travels distance of 340km at an average speed of 85km/h.How long does it take the car to travel in distance?

Naily [24]

Distance = speed x time

time = distance/speed
= 340/85
= 4h

3 0

2 years ago

Read 2 more answers

Can someone do this equation for me -11=a+5+7a

evablogger [386]

Answer:

a=-2

Step-by-step explanation:

5 go to another side by negative sign

and the coefficients of a will added

-16=8a

8 go to the other side

a=-2

8 0

3 years ago

Read 2 more answers