Question

Solve x2 + 10x = -21

Answer 1

x = 7 and x = 3

x = -7 and x = -3

x = -7 and x = 3

x = 7 and x = -3

Answer 2

x=-7,-3

Answer 3

split 21 in such a way on addition or subtraction u get 10

Answer 4

how did you get the answer

Answer 5

x^2 +10x = -21
x^2+10x+21 = 0
x^2+7x+3x+21 =0
i assume u solve from here