Add the following polynomials
$4 + 2 y - 3 y^{3}, - 8 + 4 y + 7 y^{3}$ $a n d 5 - 6 y + 8 y^{3} - 6 y^{2}$

12 y^{3} - 6 y^{2} + 1

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

12 y^{3} + 6 y^{2} + 1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

12 y^{3} - 6 y^{2} - 1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

12 y^{3} + 6 y^{2} - 1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $12 y^{3} - 6 y^{2} + 1$
Let's add the given polynomials,

$∴ 4 + 2 y - 3 y^{3} - 8 + 4 y + 7 y^{3} + 5 - 6 y + 8 y^{3} - 6 y^{2}$
$= (7 + 8 - 3) y^{3} + (- 6) y^{2} + (2 + 4 - 6) y + (4 - 8 + 5)$
$= 12 y^{3} - 6 y^{2} + 1$

Suggest Corrections

Similar questions

4 + 2 y - 3 y^{3}

- 8 + 4 y + 7 y^{3}

5 - 6 y + 8 y^{3} - 6 y^{2}

4 y^{4} + 12 y^{3} + 6 y^{2} + 50 y + 26

y^{2} + 4 y + 2

-

-

y^{3} - 6 y^{2} + 6 y + 1; y - 1

Join BYJU'S Learning Program