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3 years ago

Which of the following is one of the special product formulas?

Mathematics

2 answers:

polet [3.4K]3 years ago

7 0

Answer:

c .Perfect square trinomials

d.Difference of perfect squares

Step-by-step explanation:

We have to find the special product formulas.

a.Perfect square monomials

It is of the form $x^2$

It is not a special product formulas.

b.Difference of terms

It is of the form

$x-y$

It is not a special product formulas.

c.Perfect square trinomials

It is of the form

$(x+y)^2=x^2+y^2+2xy$

It is a special product formulas.

d.Difference of perfect squares

It is of the form

$x^2-y^2$

$(x+y)(x-y)$

Therefore, it is a special product formulas.

Klio2033 [76]3 years ago

4 0

Answer:

Perfect square trinomials and difference of two squares are just to binomials being multiplied, and they are special because there is a specific formula for them. Perfect square trinomial:(a+b)^2, a^2+2ab+b^2. Difference of squares: (a+b)(a-b), a^2-b^2

Step-by-step explanation:

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zhenek [66]

Step-by-step explanation:

Ethan sold 2/3 gallon of lemonade.

Kayla sold some lemonade too.

Together they sold 1 1/4 gallons.

Subtract 2/3 from 1 1/4 as follows :

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So, Kayla sold 7/12 gallons of lemonade.

As 2/3 is more than 7/12, it means Ethan sold more lemonade.

$\dfrac{2}{3}-\dfrac{7}{12}=\dfrac{1}{12}$

It means Eathn sold 1/12 more lemonade.

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How to solve X + y = 2<br> X - y = 4

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So y+x=2
x-y=4
one way is subsituteion where yousubisutte one of the number for another exg

x-y=4
add y to both sides
x=y+4
subsitute y+4 for x in x+y=2
y+4+y=2
2y+4=2
subtract 4 from both sides
2y=-2
divide both sides by 2
y=-1
subsiutte
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or elimination

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add the two equations and cancel the y terms

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divide both sides by 2
x==3
subsitute
x+y=2
3+y=2
y=-1

so x=3
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