Answer :

ArwaAlshareef5

Answer:

W1=0.875.

W2= -1.14

Step-by-step explanation:

(8w-7)(7w+8)

8w(7w+8)-7(7w+8)

56w^2+64w-49w-56

56w^2+15w-56

Solve it by quadratic equation

a=-b+-√(b^2-4ac)/2a

Substitute the values

And you will get 2 answers

a=-56

b=15

c=56

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