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nata0808 [166]
3 years ago
14

4x-y=18 6x+4y=38 me ajudem

Mathematics
1 answer:
allsm [11]3 years ago
7 0
Y =14 in the first equation , and in the second equation its y=8
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What is the factor of 25a2+b2?
Neko [114]

Answer:

(5a+b)⋅(5a−b)

Step-by-step explanation:

Changes made to your input should not affect the solution:

(1): "b2"   was replaced by   "b^2".  1 more similar replacement(s).

STEP

1

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Equation at the end of step 1

 52a2 -  b2

STEP

2

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Trying to factor as a Difference of Squares

2.1      Factoring:  25a2-b2

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

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Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check :  25  is the square of  5

Check :  a2  is the square of  a1

Check :  b2  is the square of  b1

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2 years ago
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