Question

7. x² + 4 – 2x²+x² – 10 by x - 2​

Answer 1

Answer:

x + 2 - 2/(x - 2)

Step-by-step explanation:

=x^2 + 4 - 2x^2 + x^2 -10

=3x^2 - 2x^2 + 4 - 10

=x^2 - 6

=(x^2 - 6)/(x - 2)

=(x+ 2 )(x - 2) - 2)/(x - 2)

=x + 2 - 2/(x -2)

Answer 2

Answer:

$7 \times {2}^{2} + 4 - 2 \times {2}^{2} + {2}^{2} - 10 \\ 7 \times 4 + 4 - 2 \times 4 + 4 - 10 \\ 28 + 2 \times 4 - 6 \\ 28 + 8 - 6 \\ 30$