Maths Help - Algebra

[MathsHelp]

menna me gana hadala denna puluwanda with steps

 

[arunaniroshan]

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[Henry L]

2x^4-4x^3+7x+1/(x+2)

I don't know how to type steps.I'll somehow try to explain.

• step 1 => divide 2x^4 by x you get 2x^3
• then multiply 2x^3 by x and then +2 you get 2x^4 + 4x
• and then (2x^4-4x^3+7x+1) - (2x^4+4x) = -8x^3+7x+1

• step 2 => divide -8x^3 by x you get -8x^2
• then multiply -8x^2 by x and then +2 you get -8x^3-16x^2
• and then (-8x^3+7x+1) - (-8x^3-16x^2) = 16x^2+7x+1

• step 3 => divide 16x^2 by x you get +16x
• then multiply +16x by x and then +2 you get 16x^2 + 32x
• and then (16x^2+7x+1) - (16x^2 + 32x) = -25x + 1

• step 4 => divide -25x by x you get -25
• then multiply -25 by x and then +2 you get -25x-50
• and then (-25x + 1) - (-25x-50) = 51

So the answer is (which is in red color) = 2x^3-8x^2+16x-25
remainder is (which is blue color) = 51

Hope this helps

 

[smother]

(2*x)*4-(4*x)*3+(7*x)+1 / (x+2)
(8*4x) - (12*3x) + (7*x)/(x+2)
8(4x) - 12(3x)+7(x) / (x+2)
8*4(x)-12*3(x)+7(x)/ (x*1)+2
16-36(x)+7(x)
(1/x) * (1/x) = 16-36*1+7*1

1/2x = 27
waradi athi ban aathal ekata haduwe

 

[rambolala]

2x^4-4x^3+7x+1/(x+2)

I don't know how to type steps.I'll somehow try to explain.

• step 1 => divide 2x^4 by x you get 2x^3
• then multiply 2x^3 by x and then +2 you get 2x^4 + 4x
• and then (2x^4-4x^3+7x+1) - (2x^4+4x) = -8x^3+7x+1

• step 2 => divide -8x^3 by x you get -8x^2
• then multiply -8x^2 by x and then +2 you get -8x^3-16x^2
• and then (-8x^3+7x+1) - (-8x^3-16x^2) = 16x^2+7x+1

• step 3 => divide 16x^2 by x you get +16x
• then multiply +16x by x and then +2 you get 16x^2 + 32x
• and then (16x^2+7x+1) - (16x^2 + 32x) = -25x + 1

• step 4 => divide -25x by x you get -25
• then multiply -25 by x and then +2 you get -25x-50
• and then (-25x + 1) - (-25x-50) = 51

So the answer is (which is in red color) = 2x^3-8x^2+16x-25
remainder is (which is blue color) = 51

Hope this helps

 

[Henry L]

 

[MathsHelp]

2x^4-4x^3+7x+1/(x+2)

I don't know how to type steps.I'll somehow try to explain.

• step 1 => divide 2x^4 by x you get 2x^3
• then multiply 2x^3 by x and then +2 you get 2x^4 + 4x
• and then (2x^4-4x^3+7x+1) - (2x^4+4x) = -8x^3+7x+1

• step 2 => divide -8x^3 by x you get -8x^2
• then multiply -8x^2 by x and then +2 you get -8x^3-16x^2
• and then (-8x^3+7x+1) - (-8x^3-16x^2) = 16x^2+7x+1

• step 3 => divide 16x^2 by x you get +16x
• then multiply +16x by x and then +2 you get 16x^2 + 32x
• and then (16x^2+7x+1) - (16x^2 + 32x) = -25x + 1

• step 4 => divide -25x by x you get -25
• then multiply -25 by x and then +2 you get -25x-50
• and then (-25x + 1) - (-25x-50) = 51

So the answer is (which is in red color) = 2x^3-8x^2+16x-25
remainder is (which is blue color) = 51

Hope this helps

Great

Got the same answer by synthetic division method,Thanks bro

 

[Henry L]

Great

Got the same answer by synthetic division method,Thanks bro

Just saw this mistake.In the step 01, 4x should be 4x^3 in line 2 and 3.I can't edit it now.

anyway you have got the answer.So no worries.