Answer:
147
Step-by-step explanation:
x = 7,
3x² = 3 × 7²
= 3 × 49
= 147
x + 14.7
Simply combine like terms. Constants go with each other and <em>x</em> terms go with each other.
6.2 + 8.5 = 14.7
x = x
Set each factors equal to zero.
The x-int is
