Maya is solving the quadratic equation by completing the square.
1 answer:
Step-by-step explanation:
factor 4 out of the variable terms, as this helps.
but my approach is simply to define the target and then calculate "backwards".
we want to find
(ax + b)² = a²x² + 2abx + b²
and now we compare with the original equation :
a²x² = 4x²
a² = 4
a = 2
2abx = 16x
2×2×bx = 16x
4b = 16
b = 4
b² = 16, but we have only 3, so we need to subtract 16-3 = 13 from the completed square.
so, our equation is
(2x + 4)² - 13 = 0
(2x + 4)² = 13
2x + 4 = sqrt(13)
2x = sqrt(13) - 4
x = sqrt(13)/2 - 2
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-39/100 is the answer according to me ..
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Answer:
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Step-by-step explanation:
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Answer:
3/2 >3/8=6/16>1/4
Step-by-step explanation:
1/4=4/16
3/8=6/16
3/2=24/16
6/16
24/16>6/16>4/16
3/2>3/8=6/16>1/4
Answer:
Step-by-step explanation:
First, we need to make the demoninators the same so we times 4 by 5 and whatever we do to the bottom, we do to the top, and 5 by 4.
demoninator now doesn't change unless you're multiplying or dividing.
