Question

find the roots of the equasion x² + 7x+10=0​

Answer 1

Step-by-step explanation:

${x}^{2} + 7x + 10 = 0 \\ {x}^{2} + (2 + 5)x + 10 = 0 \\ {x}^{2} + 2x + 5x + 10 = 0 \\ x(x + 2) + 5(x + 2) = 0 \\ (x + 5)(x + 2) = 0 \\ either \: (x + 5) = 0 \\ x = - 5 \\ or.x + 2 = 0 \\ x = - 2$

hopes it help u

Answer 2

Answer:

x² + 7x + 10 = 0

x² + (5+2)x + 10x = 0

x² + 5x + 2x + 10x = 0

x(x + 5) + 2(x+5) = 0

(x+5) (x+2) = 0

x = -5 , -2