Answer:
Step-by-step explanation:
Did the calculations myself, probably too late for these to be of any use but I'll leaave them here anyways for anyone else that needs it in the future. Love yall!
Step 1: x²-15=2x
step 2: x²-2x-15=0
step 3: (x-5)(x+3)=0
step 4: x-5=0 or x+3=0
step 5: x=5 of x=-3
It has to be true because you would need to divide
9 * 4 = 36 sooo 36 / 4 = 9
so the answer is 36 .
i hope this helps.
Answer:135
Step-by-step explanation:72 + 63 =135