Question

Date
factorise x² +X-72​

Answer 1

Answer:

${x \times x -72(1)}^{2} =$

Answer 2

Answer:

x = 8 or -9

Step-by-step explanation:

x² + x -72 = 0

x² + 9x -8x - 72 = 0

x (x+9) -8 (x+9) = 0

(x-8 ) (x+9) = 0 ( taking x+9 common)

x-8 = 0,      x+9 = 0

x = 8, x = -9