5x×2-16x-21 factorise
Answers
Answered by
78
5x2-16x-21
5x2+5x -21x -21
5x(x+1)-21(x+1)
(x+1)(5x-21)
Answered by
24
Answer:
(x+1)(5x-21)
Step-by-step explanation:
=5x2-16x-21
=5x2+5x -21x -21
=5x(x+1)-21(x+1)
=(x+1)(5x-21)..... Answer
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