Find the value of -x - y-2x - y- - -x - 2y-x - y- when x - -2 and y - -118-19-21-17-

The correct option is B 19 Given (x + y)(2x + y) + (x + 2y)(x y) Substitute nbsp; x = 2 and y = 1 in the above expression. = nbsp;( 2 nbsp;+( 1))(2( ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VI

Mathematics

Addition of Polynomials

Find the valu...

Question

Find the value of $(x + y) (2 x + y) + (x + 2 y) (x - y)$ when $x = - 2$ and $y = - 1$

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

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

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

Open in App

Solution

The correct option is C
19

Given $(x + y) (2 x + y) + (x + 2 y) (x - y)$

Substitute $x = - 2$ and $y = - 1$ in the above expression.

= $(- 2 + (- 1)) (2 (- 2) + (- 1)) + (- 2 + 2 (- 1)) (- 2 - (- 1))$

= $(- 2 - 1) (- 4 - 1) + (- 2 - 2) (- 2 + 1)$

= $(- 3) (- 5) + (- 4) (- 1)$

= $15 + 4$

= $19$

Suggest Corrections

Similar questions

Q. y a x² and y = 128 when x = 16 find

(i) The value of y when x = 10
(ii) The value of x when y = 72.

Q. Find the value of

(x + y) (2 x + y) + (x + 2 y) (x - y)

when

x = - 2

and

y = - 1

Find the value of $(x + y) (2 x + y) + (x + 2 y) (x - y)$ when $x = - 2$ and $y = - 1$

Q. Simplify

(v)

(x + y) (2 x + y) + (x + 2 y) (x - y)

Q. Add :

(x + y) (2 x + y) + (x + 2 y) (x - y)

Join BYJU'S Learning Program

Find the value of (x+y)(2x+y)+(x+2y)(x−y) when x=−2 and y=−1

The correct option is C 19 Given (x+y)(2x+y)+(x+2y)(x−y) Substitute x=−2 and y=−1 in the above expression. = (−2+(−1))(2(−2)+(−1))+(−2+2(−1))(−2−(−1)) = (−2−1)(−4−1)+(−2−2)(−2+1) = (−3)(−5)+(−4)(−1) = 15+4 = 19

Find the value of $(x + y) (2 x + y) + (x + 2 y) (x - y)$ when $x = - 2$ and $y = - 1$