Question

Subtract: a)9a+6b-8cfrom0 b)2x-8x²-9 from 5x²+3x+4​

Answer 1

Answer:

1.

$= 0 - (9a + 6b - 8c)$

$= - 9a - 6b + 8c$

2.

$= 5 {x}^{2} + 3x + 4 - (2 {x} - 8x^{2} - 9)$

$= 5 {x}^{2} + 3x + 4 - 2x + 8 {x}^{2} + 9$

$= 5 {x}^{2} + 8 {x}^{2} +3x - 2x + 4 + 9$

$= 13 {x}^{2} + x + 13$

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Answer 2

Step-by-step explanation:

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