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icang [17]
2 years ago
11

(3x +4y)2 is equal to

Mathematics
2 answers:
SCORPION-xisa [38]2 years ago
5 0

Answer:

9x² + 24xy + 16y²

Step-by-step explanation:

(3x + 4y)²

= (3x + 4y)(3x + 4y)

each term in the second factor is multiplied by each term in the first factor.

3x(3x + 4y) + 4y(3x + 4y) ← distribute both parenthesis

= 9x² + 12xy + 12xy + 16y² ← collect like terms

= 9x² + 24xy + 16y²

Nikolay [14]2 years ago
4 0

Answer: 6x + 8y

Hope this helps!

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Needed help for my math please
vesna_86 [32]

Answer:

see explanation

Step-by-step explanation:

(a)

\frac{a}{a} = 1 ( any value divided by itself = 1 )

(b)

\frac{a}{1} = a ( any value divide by 1 is the value itself )

(c)

\frac{a}{b} × \frac{c}{d} = \frac{ac}{bd}

The product of 2 fractions is the product of the numerators divided by the product of the denominators

(d)

\frac{a}{b} ÷ \frac{c}{d} = \frac{ad}{bc}

To divide 2 fractions, leave the first fraction, change division to multiplication and turn the second fraction upside down, that is

\frac{a}{b} ÷ \frac{c}{d} = \frac{a}{b} × \frac{d}{c} = \frac{ad}{bc}

(e)

\frac{a}{d} + \frac{b}{d} = \frac{a+b}{d}

Since the fractions have a like denominator, add the numerators leaving the denominator. This applies to subtraction also

(f)

\frac{a}{d} - \frac{b}{d} = \frac{a-b}{d}

See explanation for part (e)




6 0
3 years ago
I'm confused I put 13-x and it said incorrect?? HELP!
Andreas93 [3]

Answer:

Maybe -12?

Step-by-step explanation:

Because sometimes variables on their own symbolize 1, so we can subtract 13 from 1 to get -12.

5 0
2 years ago
Read 2 more answers
The diagonals of a square measure 14 cm. Which is the length of a side of the square? f.142√ cm g.72√ cm h.143√ cm j.73√ cm
Lera25 [3.4K]
Since it is a square, the diagonals are congruent. If a square is split like this, it becomes two congruent right triangles. The relationship between the sides and hypotenuse is a 1:\sqrt{2} ratio. So if the diagonal of a square is 14 cm, then the side length would be 14/\sqrt{2}, which is approximately 9.899. I don't understand what the answer choices are, but you should be able to square root the numbers to determine the answer. 
8 0
3 years ago
What number is 58% of 225?
FrozenT [24]
58% of 225 is 130.5.
6 0
3 years ago
Read 2 more answers
Please Help Me (look at the picture)
WITCHER [35]
How about "miles per hour?"  I drive "45 miles per hour" on my way into town.
That's a unit rate.

Did you know that 2 pints = 1 quart?  You could write this rate / ratio as

2 pints
---------
 1 qt

or as

 (1/2 qt)
-----------   this is a measure of one quantity per unit of another quantity.
  1 pint
8 0
3 years ago
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