Question

Please help it’s urgent

Answer 1

`\bold{\text{Answer:}\quad (-48x^4-42x^3-15x^2-5x)/((8x+7)(3x+1))}`

Explanation:

`.\quad (-5x)/(8x+7)-(6x^3)/(3x+1)\\\\\\=(-5x)/(8x+7)+(-6x^3)/(3x+1)\\\\\\=(-5x)/(8x+7)\bigg((3x+1)/(3x+1)\bigg)+(-6x^3)/(3x+1)\bigg((8x+7)/(8x+7)\bigg)\\\\\\=(-15x^2-5x)/((8x+7)(3x+1))+(-48x^4-42x^3)/((8x+7)(3x+1))\\\\\\=\large\boxed{(-48x^4-42x^3-15x^2-5x)/((8x+7)(3x+1))}`