Question

7+10(x-y) - 8 (x-y)^2

Answer 1

Answer:

45

Step-by-step explanation:

Answer 2

Step-by-step explanation:

7 + 10[x-y] - 8[x-y]^2

let x-y = a

-8a^2 + 10a + 7

-8a^2 - 4a + 14a + 7

-4a[2a+1] + 7[2a + 1]

[2a+1][7a-4]

a = -1/2, 4/7

x-y = -1/2, 4/7

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