Mathematics: HURRY PLEASE(NO LINKS) Identify the polynomial that is the difference of two squares. A. 36m^2 - 8n^8 B. 9m^2-5n^6 C. 25m^2 - 16n D. 49m^2 - 81n^4

HURRY PLEASE(NO LINKS) Identify the polynomial

Ответ:

eddyy5900

18.03.2022

Mathematics

Difference of Squares

The difference of squares rule states that:

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

A polynomial can only be a difference of two squares if a and b are both perfect squares.

Solving the Question

D. 49m^2 - 81n^4

Out of all the given options, option D is the only polynomial in which a and b are both perfect squares. We know this because we can rewrite the expression as below:

$49m^2 - 81n^4\\= (7m)^2 - (9n^2)^2$

In this case, a=7m and b=9n^2 .

Answer

D. 49m^2 - 81n^4

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Ответ:

kira3039

10.04.2020

Mathematics

Preço de um sapato = $ 180,00

Desconto concedido se o sapato for comprado em dinheiro = 10%

Custo do calçado quando comprado à vista :

$=\tt 180 - 10\% \: \: de \: \: 180$

$= \tt180 - \frac{10}{100} \times 180$

$=\tt180 - \frac{10 \times 180}{100}$

$= \tt180 - \frac{1800}{100}$

$=\tt 180 - 18$

$\color{plum} =\tt\$162.00$

▪︎Assim, preço do sapato quando comprado em dinheiro = $ 162,00

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HURRY PLEASE(NO LINKS) Identify the polynomial that is the difference of two squares.

A. 36m^2 - 8n^8

B. 9m^2-5n^6

C. 25m^2 - 16n

D. 49m^2 - 81n^4

Ответ:

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