Multiply-1 3 x by 4 y2 2 y by 4 y3 8 a by 4 m4 -4 x by 8 x5 -5 a by -8 b6 -6p by 4 p q7 2 a2 by 5 a28 3 x2 b2 by 5 x9 -7 m2 n2 by 4 m10 -5 a2 b by -7 a b2

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Byju's Answer

Standard VII

Mathematics

Multiplication of Algebraic Expressions

Multiply:1 3 ...

Question

Multiply:

(1) 3x by 4y

(2) 2y by 4y

(3) 8a by 4m

(4) −4x by 8x

(5) −5a by −8b

(6) −6p by 4pq

(7) 2a² by 5a²

(8) 3x²b² by 5x

(9) −7m²n² by 4m

(10) −5a²b by −7ab²

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Solution

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Similar questions

Q. Multiply:
(i) x² + y² + z² − xy + xz + yz by x + y − z

(ii) x² + 4y² + z³ + 2xy + xz − 2yz by x − 2y − z

(iii) x²+ 4y² + 2xy − 3x + 6y + 9 by x − 2y + 3

(iv) 9x² + 25y² + 15xy + 12x − 20y + 16 by 3x − 5y + 4

(v) x²+ 4y² + z² + 2xy + xz – 2yz by (−z + x – 2y)

Multiply: x²+4y²+z²+2xy+xz-2yz by x-2y-z

(i) $x^{2} + y^{2} + z^{2} - x y + x + y z by x + y - z$

(ii) $x^{2} + 4 y^{2} + z^{2} + 2 x y + x z - 2 y z by x - 2 y - z$

(iii) $x^{2} + 4 y^{2} + 2 x y - 3 x + 6 y + 9 by x - 2 y + 3$

(iv) $9 x^{2} + 25 y^{2} + 15 x y + 2 x - 20 y + 16 by 3 x - 5 y + 4$

Q. Question 6
Multiply

(x^{2} + 4 y^{2} + z^{2} + 2 x y + x z - 2 y z) b y (- z + x - 2 y .)

Multiply :

$(i) 8 a b^{2} b y - 4 a^{3} b^{4} (i i) \frac{2}{3} a b b y - \frac{1}{4} a^{2} b (i i i) - 5 c d^{2} b y - 5 c d^{2} (i v) 4 a a n d (6 a + 7) (v) - 8 x a n d (4 - 2 x - x^{2}) (v i) 2 a^{2} - 5 a - 4 a n d - 3 a . (v i i) x + 4 b y x - 5 (v i i i) 5 a - 1 b y 7 a - 3 (i x) 12 a + 5 b b y 7 a - b (x) x^{2} + x + 1 b y 1 - x (x i) 2 m^{2} - 3 m - 1 a n d 4 m^{2} - m - 1 (x i i) a^{2}, a b a n d b^{2} (x i i i) a b x, - 3 a^{2} x a n d 7 b^{2} x^{3} (x i v) - 3 b x, - 5 x y a n d - 7 b^{3} y^{2} (x v) (- \frac{3}{2} x^{5} y^{3}) a n d (\frac{4}{9} a^{2} x^{3} y) (x v i) (- \frac{2}{3} a^{7} b^{2}) a n d (- \frac{9}{4} a b^{5}) (x v i i) (2 a^{3} - 3 a^{2} b^{2}) a n d (- \frac{1}{2} a b^{2}) (x v i i i) (2 x + \frac{1}{2} y) a n d (2 x - \frac{1}{2} y)$

Join BYJU'S Learning Program

Multiply: (1) 3x by 4y (2) 2y by 4y (3) 8a by 4m (4) −4x by 8x (5) −5a by −8b (6) −6p by 4pq (7) 2a2 by 5a2 (8) 3x2b2 by 5x (9) −7m2n2 by 4m (10) −5a2b by −7ab2

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)

Multiply:

(1) 3x by 4y

(2) 2y by 4y

(3) 8a by 4m

(4) −4x by 8x

(5) −5a by −8b

(6) −6p by 4pq

(7) 2a² by 5a²

(8) 3x²b² by 5x

(9) −7m²n² by 4m

(10) −5a²b by −7ab²

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