Apply lg on both sides.
lg7^x^2 = lg9^x
Bring the power forward.
x^2lg7 = xlg9
x^2/x = lg9/lg7
x = lg9/lg7 = 1.13
1yard =3ft so 》 6ft/4×3ft=6/12=1/2
Answer:
a b c e
Step-by-step explanation:
To find the sum:
Therefore the answer is a^3+12a^2+14a+5.
Hope it helps!