= 3(4a^2 + 4a - 3) - 4a^2 + 28
= 12a^2 + 12a - 9 - 4a^2 + 28
= 8a^2 + 12a + 19
= 4a(2a + 3) + 19
What you need help with??
4(-2)^2(-1)^3
4 x 4 x -1
Correction answer D: -16
1) 5.028 × 10^21
2) 8.46 × 10^22 (ig theres literally nothing else it could be)
3) approx. 17 times greater (rounded up from 16.8)
