Math, asked by skanisha747, 10 days ago

plz solve this fast​

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Answers

Answered by viperisbackagain
0

Answer:

a

Step-by-step explanation:

1. (x+4)(x+10)

on multiplication

+ 10x + 4x + 40 (looks like +(x+y)b + 2ab

x²+14x +40

2 (x+8)(x-10)

on multiplication

-10x+8x-80 ( looks like + (x+y)b + ab)

- 2x -80

3

 {y}^{2} +  \frac{3}{2}  \times  {y}^{2}  -   \frac{3}{2}

 {y}^{2} -  { \frac{3}{2} }^{2}

by using (a-b)(a+b)= -b²

 {y}^{2}  -   \frac{9}{4}

4

(3 - 2x)(3  + 2x)

by using a-b a+b = -b²

 {3}^{2}  -  {2x}^{2}

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