Question

simplify by factorisation -x^2-2root3x+9​

Answer 1

Answer:

Step-by-step explanation:

-x^2-2root3x+9​

-(x² + 2√3x - 9)

-((x+√3)² -3-9)

-((x+√3)²-12)

-((x+√3)² -(2√3)²)

-(x+√3-2√3)(x+√3+2√3)

-(x-√3)(x+3√3)