Answer:
22
Step-by-step explanation:
4x² + 3x = 4(2)² + 3(2) = 4(4) + 6 = 16 + 6 = 22
Answer: 22
Answer: All real numbers greater than or equal to -2
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
a²+b where a= -2, b=5
(-2)²+(5)
=4+5
=9
Answer:

Step-by-step explanation:
7k/3 = 21
x 3 x3
7k = 63
/7 /7
k = 9
(7(9)/3 = 21 = 63/3 = 21 = 21 = 21)