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secondary 4 | A Maths
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idk how to find the coefficient of x^7 when the expansion is multiplied by (4x - 1)... help me ty :,)
Date Posted: 6 years ago
Views: 400
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done
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For 2nd part consider the product of terms in the expansion and (4x-1) that will give x^7. In this case, it's the sum of the x^6 term * 4x and x^7 term * (-1).
Date Posted:
6 years ago
done
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Hope this helps
Date Posted:
6 years ago
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