Question

Tiles

-5X-2
5x + 2
5x - 2
-5x + 2
Pairs
-
120 + 8 - 72 - 10
1 2 + 17 – ſx – 15
CON
1
8 – 125 – 10 + 70
9 - - įx - 7
N

Answer 1

Explanation:

`\rm \mapsto \: (5x - 2)(5x + 2) = 12 \\ \rm \mapsto \: 5x(5x + 2) - 2(5x + 2)=12 \\ \rm \mapsto \: {25x}^(2) + 10x - 10x - 4 =12\\ \rm \mapsto \: {25x}^(2) - 4=12 \\ \rm \mapsto \:25x^2=12+4 \\ \rm \mapsto \: 25x^2=16`

Answer 2

Explanation:

➡(5x-2)(5x+2)=12

➡5x^2-(2)^2=12

➡25x^2-4=12[/tex]

➡25x^2=12+4=16