Question

(5ײ+7×by5ײ

pl give me ans step by step
​

Answer 1

Answer:

mark a brain list please this is my request

Step-by-step explanation:

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8th

Maths

Algebraic Expressions and Identities

Operations on Algebraic Expressions

Multiply: ( 4x^4 - 3x^2 - ...

Maths

Multiply: (4x

4

−3x

2

−7x+8) by (5x

2

−2x−3)

Medium

Answer

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Correct option is

A

20x

6

−8x

5

−27x

4

−29x

3

+63x

2

+5x−24

To multiply the given polynomials 4x

4

−3x

2

−7x+8 and 5x

2

−2x−3, we distribute each term of the first polynomial to every term of the second polynomial as shown below:

(5x

2

−2x−3)(4x

4

−3x

2

−7x+8)

=5x

2

(4x

4

−3x

2

−7x+8)−2x(4x

4

−3x

2

−7x+8)−3(4x

4

−3x

2

−7x+8)

=20x

6

−15x

4

−35x

3

+40x

2

−8x

5

+6x

3

+14x

2

−16x−12x

4

+9x

2

+21x−24

=20x

6

−8x

5

+(−15x

4

−12x

4

)+(−35x

3

+6x

3

)+(40x

2

+14x

2

+9x

2

)+(−16x+21x)−24

(Combiningliketerms)

=20x

6

−8x

5

+x

4

(−15−12)+x

3

(−35+6)+x

2

(40+14+9)+x(−16+21)−24

=20x

6

−8x

5

−27x

4

−29x

3

+63x

2

+5x−24

Hence, (5x

2

−2x−3)(4x

4

−3x

2

−7x+8)=20x

6

−8x

5

−27x

4

−29x

3

+63x

2

+5x−24.

Answer 2

Answer:

$\frac{5x^{2} + 7x}{5x^{2} }$ do you mean this? you are not very clear

Step-by-step explanation:

please clarify