1) 2ˣ⁺² + 2ˣ⁺³ +2ˣ⁺⁴ = 7* 2ˣ²
4*2ˣ+8*2ˣ+16*2ˣ=7 *2ˣ²
28*2ˣ=7*2ˣ²
4*2ˣ=2ˣ²
4= 2ˣ
х=2
2) 2ˣ⁺² + 2ˣ⁺⁵ = 9
4*2ˣ+32*2ˣ=9
36*2ˣ=9
4*2ˣ=1
2ˣ⁺²=2⁰
х+2=0
х= -2
1) 2ˣ⁺² + 2ˣ⁺³ +2ˣ⁺⁴ = 7* 2ˣ²
4*2ˣ+8*2ˣ+16*2ˣ=7 *2ˣ²
28*2ˣ=7*2ˣ²
4*2ˣ=2ˣ²
4= 2ˣ
х=2
2) 2ˣ⁺² + 2ˣ⁺⁵ = 9
4*2ˣ+32*2ˣ=9
36*2ˣ=9
4*2ˣ=1
2ˣ⁺²=2⁰
х+2=0
х= -2