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notsponge [240]

4 years ago

15

(7x+3)(x-9) simplify then find the difference

1 answer:

pickupchik [31]4 years ago

4 0

Answer:

7x²-60x-27

steps

=(7x+3)(x+−9)

=(7x)(x)+(7x)(−9)+(3)(x)+(3)(−9)

=7x²−63x+3x−27

=answer

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Factor the expression. x2 – 2x + 1 A. (x – 1)2 B. (x + 1)2 C. (x + 1)(x – 1)

Naddika [18.5K]

ANSWER

A.

${(x - 1)}^{2}$

EXPLANATION

The given expression is

${x}^{2} - 2x + 1$

We split the middle term to obtain,

${x}^{2} - x - x + 1$

Factor to obtain

$x(x - 1) - 1(x - 1)$

Factor further to get,

$(x - 1)(x - 1)$

This is the same as;

${(x - 1)}^{2}$

The correct choice is A

5 0

3 years ago

What is the solution set up 7x^2+3X=0

Alisiya [41]

Answer:

X=0,X=-3/7

Step-by-step explanation:

7x^2+3x=0

x(7x+3)=0

x=0

7x+3=0

7x=-3

x=-3/7.

4 0

4 years ago

Read 2 more answers

The elevation of a mountain is 27,370 feet. Due to erosion, this mountain is reduced by 0.2% each year. In how many years will t

koban [17]

Answer:

7 years

Step-by-step explanation:

27370 - 26986.82 = 383.18ft

0.2% = 0.2/100 = 0.002

27370*0.002 = 54.74

each year the montain reduce your elevation

54.74ft

then:

383.18/54.74 = 7

Answer:

7 years

4 0

3 years ago

Heya! could someone tell me what the rate change of the table here is?

Sindrei [870]

Rate of change is 50! Mark me brainliest so I can help more people please !!

8 0

3 years ago

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write the equation of a line in slope intercept form that has a slope of 4 and passes through (6,-3).

pogonyaev

Answer: y= 4x -27

Step-by-step explanation:

y= 4x + b where b is the y-intercept

-3 =4(6) + B

-3= 24 + B

b=-27

y= 4x -27

7 0

4 years ago