plz answer !!!!!!!!
15 question
Attachments:
Answers
Answered by
0
Answer: (6x²+10x+37)(2x²-6x+17)
Step-by-step explanation:
Let m = x²+7 and n=2x-1
Then 12(x²+7)² - 8(x²+7)(2x-1) - 15(2x-1)² = 12m² - 8mn -15n
= (6m+5n)(2m-3n)
=[6(x²+7) + 5(2x-1)][2(x²+7)-3(2x-1)]
=(6x²+42+10x-5)(2x²+14-6x+3)
=(6x²+10x+37)(2x²-6x+17)
Similar questions