3 years ago

What is the factored form of the expression k^2 - 9h^2

1 answer:

6 0

The equation which is supposed to help you is this one:
a^2 - b^2 = (a+b) (a-b)

So, what we need to do here is apply this equation:
k^2 - 9h^2 =
k * k - (3h)^2 =
(k + 3h) (k - 3h)

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Divide: 15m^2n + 20mn/5mn

mylen [45]

The answer is
15m^2n + 4/n
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3 years ago

The price of a geometrical box was Rs 400 last year. It has increased by 12% this year. What is the price now?

mestny [16]

Answer:

Rs 448

Step-by-step explanation:

400 × 1.12 = 448

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3 years ago

Which of the expressions below can be factored using the difference of squares method?

zlopas [31]

Answer:

The second choice is correct. It can be factored as:

$9x^2-16y^2=(3x-4y)(3x+4y)$

Step-by-step explanation:

The Difference of Squares Method for Factoring

The expression:

$a^2-b^2=(a-b)(a+b)$

Is a widely used method to factor binomials that are expressed as the subtraction of two perfect squares.

The condition for a binomial to be factored by using this method is that both terms must have an exact square root and they must be subtracted.

The last two choices are not valid because they are not a subtraction but an addition.

The first choice is not valid because none of the terms is a perfect square.

The second choice is correct. It can be factored as:

$9x^2-16y^2=(3x-4y)(3x+4y)$

4 0

2 years ago

A. The seats are divided into 40 different sections thats are given in only 5 sections, what

SVETLANKA909090 [29]

Answer: 40 / 5 = 8 There would be 8 guests sitting in a section that gets hats.

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3 years ago

Pls answer the question important

Sladkaya [172]

Step-by-step explanation:

no they are not parallel

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3 years ago

Read 2 more answers