Answer:
5x-7
Step-by-step explanation:
5 times x (a number) subtract 7
4 a⁴ - 2 b² + 40 :
4 * ( 2⁴) - 2 * ( 7²) + 40 =
4 * 16 - 2 * 49 + 40 =
64 - 98 + 40 =
-34 + 40 =
+ 6
<span>hope this helps!</span>
Answer:
x=-28
Step-by-step explanation:
you multiply the number first
and you calculate
then you move constant to the right
you changes the sign
done!
Answer:
310
Step-by-step explanation:
The last option because it’s the one that makes that will get you the sum need when added with the other polynomial