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Alona [7]
3 years ago
10

Simplify (a+b) ²-2ab​

Mathematics
1 answer:
Scrat [10]3 years ago
6 0

Answer:

a² + b²

Step-by-step explanation:

(a + b)² - 2ab ← expand parenthesis using FOIL

= a² + 2ab + b² - 2ab ← collect like terms

= a² + b²

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Solve for a : D = 4/5a + h
Tresset [83]

Answer:Let's solve for a.

d=

4

5

a+h

Step 1: Flip the equation.

4

5

a+h=d

Step 2: Add -h to both sides.

4

5

a+h+−h=d+−h

4

5

a=d−h

Step 3: Divide both sides by 4/5.

4

5

a

4

5

=

d−h

4

5

a=

5d−5h

4

Answer:

a=

5d−5h

4

Step-by-step explanation:

7 0
4 years ago
convert the mixed numbers to improper fractions. this will get you one step closer to finding the unit rate
Kaylis [27]
It means for example instead of writing 2 2/5 You would write 12/5
You can find out an improper fraction by simply multiplying the denominator by the front number and adding the answer to you numerator
So, 2x5= 10. 10+2= 12. So 12/5
8 0
3 years ago
For what value of k are there two complex solutions to the given quadratic equation (k+1)x²+4kx+2=0.
nlexa [21]

Answer:k\in \left ( \frac{-1}{2},1\right )

Step-by-step explanation:

Given

\left ( k+1\right )x^2+4kx+2=0

For complex  roots Discriminant should be zero

D<0

D=\sqrt{b^2-4ac}

here

D=\sqrt{\left ( 4k\right )^2-4\left ( k+1\right )\left ( 2\right )}

D=\sqrt{16k^2-8k-8}

so 16k^2-8k-8

2k^2-k-1

\left ( 2k+1\right )\left ( k-1\right )

so k\in \left ( \frac{-1}{2},1\right )

3 0
4 years ago
What type of angles are 5 and 4
Scorpion4ik [409]

Answer:

show us a pic of the triangles

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
How many ways can 4 letters from papaya be arranged
Gemiola [76]

Answer:

There would be 2 ways I would think because you can spell it with the same letters if that makes sense

4 0
3 years ago
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