x^2-x-42 factorise it
Answers
Answered by
3
Step-by-step explanation:
x + x = 42 _ 2
2x = 40
x = 40 ÷ 2
x = 20 ans
Answered by
6
x^2-x-42=0
x^2-7x+6x-42=0
x(x-7) - 6(x-7)= 0
x-7 = 0 or x-6 =0
x = 7 or x = 6
Similar questions
Math,
5 months ago
Math,
5 months ago
English,
5 months ago
Social Sciences,
10 months ago
Social Sciences,
10 months ago
Social Sciences,
1 year ago
India Languages,
1 year ago