$2b^2+4b-2=0\\
2(b^2+2b-1)=0\\
2(b^2+2b+1-2)=0\\
2((b+1)^2-2)=0\\
2(b+1)^2-4=0\\\
2(b+1)^2=4\\\
(b+1)^2=2\\
b+1=-\sqrt2 \vee b+1=\sqrt2\\
b=-1-\sqrt2 \vee b=-1+\sqrt2

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5 0

3 years ago

If f(5)=a what is the value of a

Dvinal [7]

Answer:

a = 5

Step-by-step explanation:

8 0

3 years ago

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What is the volume of this box?<br> 4 in long<br> 12in high<br> 3in wide

Natali5045456 [20]

Answer:

Step-by-step explanation:

Multiply the length, width and height to find the volume of the box

6 0

3 years ago

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A retangle is 12 feet wide and 96 inches long. What is the area of the rectangle

luda_lava [24]

I think the area of the rectangle is 96

8 0

3 years ago