Question

The question is in the picture plz help​

Answer 1

Answer:

1)(3x + 2)^2=9x^2+12x+4

2)(10x-5)^2=100x^2-100x+25

3)(5x^2+4)^2=25x^4+40x^2+16

Step-by-step explanation:

(a+b)^2=a^2+2ab+b^2ab

and (a-b)^2=a^2-2ab +b^2

hope it helps.....

Answer 2

Answer:

$1) \: (3x + 2) {}^{2} \\ apply \: formula \: (a + b) {}^{2} = {a}^{2} + b {}^{2} + 2ab \\ = 9 {x}^{2} + 4 + 12x \: \: ans$

$2) \: (10 x - 5) {}^{2} \\ apply \: formula \: (a - b) {}^{2} = {a}^{2} + {b}^{2} - 2ab \\ = 100 {x}^{2} + 25 - 100x \: \: ans$

$3) \: (5 {x}^{2} + 4) {}^{2} \\ apply \: formula \: (a + b) {}^{2} = {a}^{2} + b {}^{2} + 2ab \\ = 25x {}^{4} + 16 + 40 {x}^{2} \: \: ans$

Hey! Mate Here is your solution. Thanks