Mathematics: I need to perform the operation

I need to perform the operation - id15273442, ahmedeldyame

masonprice

10.02.2022

(-5 $x^{2}$ -4x-1)+(-4 $x^{2}$ -4x)

=-5 $x^{2}$ -4x-1-4 $x^{2}$ -4x

=-9 $x^{2}$ -8x-1

0,0(0 оценок)

elijahjacksonrp6z2o7

10.02.2022

$( - 5x^{2} \times - 4x \: - 1)( - 4^{2} - 4x)$

$(((0 - (5 • ( { \times }^{2} ))) - 4x) - 1) + ((0 - {2}^{2} {x}^{2} ) - 4x)$

$(((0 - 5 {x}^{2} ) - 4x) - 1) + ( - 4 {x}^{2} - 4x)$

Full out like factors:

$- 9 {x}^{2} - 8x - 1 • = - 1(9 {x}^{2} + 8x + 1$

Factoring

$9 {x}^{2} + 8x + 1$

The first term is, $9 {x}^{2}$ its coefficient is 9 .

The middle term is, + 8x its coefficient is 8 .

The last term, "the constant", is + 1

Step-1 : Multiply the coefficient of the first term by the constant 9 • 1 = 9

Step-2 : Find two factors of 9 whose sum equals the coefficient of the middle term, which is 8 .

-9x^2 - 8x - 1

0,0(0 оценок)

phsycotic121

04.06.2022

470<x<530

Step-by-step explanation:

Let x be number of acceptable words

|x-500|<300

we write absolute value inequality representing the acceptable number of words, given the fact that absolute deviation is at most 30 words

-30<x-500<30

500-30<x-500+500<30+500

470<x<530.

0,0(0 оценок)