Question

Dacă nu vedeți este:

g) 7^x+3-7^x+2-7^x+1=41-7^2x

h) 3^x+3×4^x+1-5×3^x×4^x=1236​

repede vreau sa ma joc roblox

Answer 1

Răspuns:

${7}^{x + 1} ( {7}^{2} - 7 - 1) = 41 \times {7}^{2x}$

${7}^{x + 1} \times 41 = 41 \times {7}^{2x}$

$x + 1 = 2x \: = > x = 1$

${3}^{x} \times {4}^{x} ( {3}^{3} \times 4 - 5) = 1236$

${3}^{x} \times {4}^{x} \times 103 = 1236$

${3}^{x} \times {4}^{x} = 1236 \div 130$

${3}^{x} \times {4}^{x} = 12$

${3}^{x} \times {4}^{x} = {3}^{1} \times {4}^{1} = > x = 1$