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dybincka [34]
3 years ago
12

Which products result in a perfect square trinomial? Select three options.

Mathematics
2 answers:
Kazeer [188]3 years ago
8 0

Answer:

Second option: (xy+x)(xy+x)

Third option: (2x-3)(-3+2x)

Fifth option: (4y^2+25)(25+4y^2)

Step-by-step explanation:

By definition, a perfect square trinomial can be obtained by squaring binomials.

Then:

(a+b)^2=(a+b)(a+b)=a^2+2ab+b^2\\\\(a-b)^2=(a-b)(a-b)=a^2-2ab+b^2

Knowing this, to obtain a perfect square trinomial, the binomials that you multiply must be equals.

Therefore, the products result in a perfect square trinomial are:

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

(2x-3)(-3+2x)=(2x-3)^2=(2x)^2-2(2x)(3)+3^2=4x^2-12x+9

(4y^2+25)(25+4y^2)=(4y^2+25)^2=(4y^2)^2+2(4y^2)(25)+25^2=16y^4+200y^2+625

Setler79 [48]3 years ago
6 0

Answer:

Its Easy the answers are B, C, and E

Step-by-step explanation:

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jek_recluse [69]

Answer:

x=4

Step-by-step explanation:

since triangles are proportional by 2:1, then:

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8=3x-4

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3 0
2 years ago
Zack bought a coat for $69.78. He paid with a $100 bill and received $26.73 in change.How Much was the sales tax? Show your work
Sindrei [870]
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3 years ago
15 is 10 % of what number
Len [333]

15*10=150

15 is 10% of 150

4 0
3 years ago
Expecting new arrivals, Ifa's Electronics laptops were marked down for 35 % off the initial price. A customer purchases a laptop
Fittoniya [83]

Answer: $835.88

Step-by-step explanation:

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5 0
3 years ago
Given the sequence 12, 9, 6, 3,........ where x = 0, 1, 2......, what is the function rule? f(x) = −3
Diano4ka-milaya [45]
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Solved:
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Now B is 3x/ -3 15 -3 means x = 12

I don’t think C is the answer at all I think it’s A but I’m not 100% sure
XD I hope my answer helps you one way or another
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