Question

Помогите сделать СРОЧНО!!!!

Answer 1

$1.(3x + 2)^{2} + (4x + 1) times (4x - 1) = (5x - 1)^{2} \ 9 {x}^{2} + 12x + 4 + 16 {x}^{2} - 1 = 25 {x}^{2} - 10x + 1 \ 25 {x}^{2} + 12x + 3 = 25 {x}^{2} - 10x + 1 \ 12x + 3 = - 10x + 1 \ 12x + 10x = 1 - 3 \ 22x = - 2 \ x = - frac{1}{11} \ 2. : 1){234}^{2} - {233}^{2} = (234 - 233) times (234 + 233) = 1 times 467 = 467 \ 2){139}^{2} + 2 times 139 times 61 + {61}^{2} = (139 + 61)^{2} = {200}^{2} = 40000 \3)159^{2} - 2 times 159 times 59 + {59}^{2} = (159 - 59)^{2} = 100^{2} = 10000$

Answer 2

3) 9х²+12х+4+16х²-4х+4х-1=25х²-10х+1

   25х²+12х-25х²+10х=1+1-4

   22х=-2

   х=-2/22

   х=-1/11

4) а) (234-233)(234+233)=1*467=467

   б) (139+61)²=200²=40000

   в) (159-59)²=100²=10000