Question

Find the zeroes the polynomial 4m2+8m.8m​

Answer 1

Step-by-step explanation:

4m

2

+8m=0

All equations of the form ax

2

+bx+c=0 can be solved using the quadratic formula:

2a

−b±

b

2

−4ac

. The quadratic formula gives two solutions, one when ± is addition and one when it is subtraction.

4m

2

+8m=0

This equation is in standard form: ax

2

+bx+c=0. Substitute 4 for a, 8 for b, and 0 for c in the quadratic formula,

2a

−b±

b

2

−4ac

.

m=

2×4

−8±

8

2

Take the square root of 8

2

.

m=

2×4

−8±8

Multiply 2 times 4.

m=

8

−8±8

Now solve the equation m=

8

−8±8

when ± is plus. Add −8 to 8.

m=

8

0

Divide 0 by 8.

m=0

Now solve the equation m=

8

−8±8

when ± is minus. Subtract 8 from −8.

m=

8

−16

Divide −16 by 8.

m=−2

The equation is now solved.

m=0

m=−2