Question 83 (xx)

Multiply the following:

$(x^{2} - 5 x + 6), (2 x + 7)$

Open in App

Solution

We have $(x^{2} - 5 x + 6)$ and $(2 x + 7)$
$∴ (x^{2} - 5 x + 6) (2 x + 7) = x^{2} (2 x + 7) - 5 x (2 x + 7) + 6 (2 x + 7)$
$= 2 x^{3} + 7 x^{2} - 10 x^{2} - 35 x + 12 x + 42 = 2 x^{3} - 3 x^{2} - 23 x + 42$

Suggest Corrections

Similar questions

Question 83 (xx)

Multiply the following:

$(x^{2} - 5 x + 6), (2 x + 7)$

x^{2} + 4 x - 77

x^{2} + 15 x + 26

x^{2} + 9 x + 20

x^{2} - 17 x + 60

Join BYJU'S Learning Program

Explore more

Join BYJU'S Learning Program