Tolong buatin plisssssssssssss​

Penjelasan dengan langkah-langkah:

7. 8(-2) – (-1)10 = -16 + 10 = -6

8. x(x+1) – (x+2)(-3) = 2

x^2 + x – (-3x-6) = 2

x^2 + 4x + 6 = 2

x^2 + 4× + 4 = 0

( x + 2) ( x+2) = 0 -> x = -2

9. 2 × 5