Question

1) (3b-4c)^22) (4a+3b)^23) (3+2a)^24) (9-8c)^2​

Answer 1

$1) (3b-4c)^2=9b^2-24bc+16c^2\\\\2) (4a+3b)^2=16a^2+24ab+9b^2\\\\3) (3+2a)^2=9+12a+4a^2\\\\4) (9-8c)^2=81-144c+64c^2$

Answer 2

Expanding the given expressions:

1. (3b - 4c)^2 = (3b)^2 - 2(3b)(4c) + (4c)^2 = 9b^2 - 24bc + 16c^2

2. (4a + 3b)^2 = (4a)^2 + 2(4a)(3b) + (3b)^2 = 16a^2 + 24ab + 9b^2

3. (3 + 2a)^2 = (3)^2 + 2(3)(2a) + (2a)^2 = 9 + 12a + 4a^2

4. (9 - 8c)^2 = (9)^2 - 2(9)(8c) + (8c)^2 = 81 - 144c + 64c^2