suppose, the number is x
then,
1/3 x-7=10
Answer:
E. x² + 11x - 42 = 0
Step-by-step explanation:
let the square sides be x
A = bh = (x + 3 + 3)(x + 2 + 3) = 72
(x + 6)(x + 5) = 72
x² + 11x + 30 = 72
x² + 11x - 42 = 0
(x+3)(x-5)
find two multiples of -15 that when added together create -2
those two numbers would be -5 and +3
-5x3=-15
-5+3=-2
