Answer:
Step-by-step explanation:
Answer:
it could either be 35 or 70
Step-by-step explanation:
Answer: i think the answer is 0, -3
Step-by-step explanation:
That one looks very difficuly
The best step to do next is to add 80 to both sides of equation:
5 ( x² + 8 x ) + 80 = 14 + 80
and since 80 = 5 · 16
5 ( x² + 8 x + 16 ) = 94 Answer : B )
After that we will continue like this:
5 ( x + 4 )² = 94
( x + 4 )² = 18.8 ... etc
