The product of two consecutive integers is 420. which quadratic equation can be used to find x, the lesser number?
a. x2 + 1 = 420
b. x2 + 2 = 420
c. x2 + x = 420
d. x2 + 2x = 420

Option (c) is the correct answer.

Step-by-step explanation:

Let the first number be x.

The second number which is a consecutive number be (x+1).

According to the given statement, product of both these numbers is as follows.

        = 420

Therefore, simplifying the equation as follows.

        = 420

Thus, we can conclude that the product of two consecutive integers represent the quadratic equation = 420.

3; 9 is 8 to -4

step-by-step explanation:

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length