Question

Subract 9x²+8x-6 from twice of 5x²-12x+4

Answer 1

x² - 32x + 14

Step-by-step Step-by-step explanation:

`\implies \sf 2(5 {x}^(2) - 12x + 4) - (9 {x}^(2) + 8x - 6) \\ \\\implies \sf (10 {x}^(2) - 24x + 8) - (9 {x}^(2) + 8x - 6) \\ \\\implies \sf 10 {x}^(2) - 24x + 8 - 9 {x}^(2) - 8x + 6 \\ \\ \implies \sf {(10 - 9)x}^(2) - (24 + 8)x + (8 + 6) \\ \\ \implies \sf {x}^(2) - 32x + 14`