Question

subtract (4x power 3 -7x power 2 +5x-4) from (6-5x+6x power 2 -8x power 3​

Answer 1

Answer:

Given⤵

$➡ {4x}^{3} - {7x}^{2} + 5x - 4 \: and \\ ➡6 - 5x + {6x}^{2} - {8x}^{3}$

To find⤵

$➡Subtraction \: {4x}^{3} - {7x}^{2} + 5x - 4 \: from \: 6 - 5x + {6x}^{2} - {8x}^{3}$

Solution⤵

➡6 - 5x + 6x² -8x³ - ( 4x³-7x² + 5x-4)

⚫If '-'sign is before the bracket then on breaking bracket inside bracket sign changed.

➡6 - 5x + 6x² -8x³ - 4x³+7x²-5x+4

➡6+4-5x-5x+6x²+7x²-8x³-4x³

➡10-10x+13x²-12x³ or -12x²+13x²-10x+10

✅Hence, the value of subtraction 4x³-7x² + 5x-4 from 6 - 5x + 6x² -8x³ is 10-10x+13x²-12x³ or -12x²+13x²-10x+10.

✔Extra points⤵

✡If '-'sign is before the bracket then on breaking bracket inside bracket sign changed. As -(-a) = a and -(a) = -a.

Hope this is helpful to you!

Answer 2

Answer:

- 3x^4+4x^3-2x^2+5x-3