Hello,
[tex]( {c}^{2} + {d}^{2} ) - 2( {c}^{2} - {d}^{2} )[/tex]
[tex] = (( - 2) {}^{2} + 2 {}^{2} ) - 2(( - 2) {}^{2} - 2 {}^{2} )[/tex]
[tex] = (4 + 4) - 2(4 - 4)[/tex]
[tex] = 8 - 2 \times 0[/tex]
[tex] = 8[/tex]
Answer:
d or 16
Step-by-step explanation:
(-2²+2²)-2(-2²-2²)
-2(-4-4)
8+8=16
