Question

phan tich da thuc thanh nhan tu

a, x^2+x-6

b,x^4+4

Answer 1

a)\(x^2+x-6\)

\(=x^2-2x+3x-6\)

\(=\left(x^2-2x\right)+\left(3x-6\right)\)

\(=x\left(x-2\right)+3\left(x-2\right)\)

\(=\left(x-2\right)\left(x+3\right)\)

Answer 2

a) x² + x - 6

= x² - 2x + 3x - 6

= (x² - 2x) + (3x - 6)

= x(x - 2) + 3(x - 2)

= (x + 3)(x - 2)

b) x⁴ + 4

= x⁴ + 4x² + 4 - 4x²

= (x⁴ + 4x² + 4) - 4x²

= (x + 2)² - 4x²

= (x + 2 - 2x)(x + 2 +2x)