factorise. 7x² - 6x² + 20
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Answered by
2
Answer:
please check this explanation
I hope it is correct
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Answered by
1
Answer:
(3x+4)(2x-5)
Step-by-step explanation:
= 7x-6x²+20
= 6x²-7x-20
= 6x²-8x-15x-20
= (6x²-8x)-(15x-20)
= 2x(3x-4) -5(3x-4)
= (3x+4)(2x-5)
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