Question

give me solution withstep by step .......​

Answer 1

Answer:

Answer in the given attachment.

Please mark my answer as the brainliest.

Answer 2

(ii) Using (x+a)(x+b)=x^2+(a+b)x+ab

Where a=8 and b=-10,

i.e x^2 + (8(-10))x+(8)(-10)

=x^2-2x-80

(iii) Using (x+a)(x+b)=x^2+(a+b)x+ab

Where x=3x, a=4 and b=-5

i.e (3x)^2 + (4+(-5)3x + (4×(-5)

=9x^2+3x-20

(iv) Using (a+b)(a-b)=a^2 - b^2

Where a = y, b=3/2

i.e (y^2)^2 - (3/2)^2

=(y^4) - 9/4

(v) Using (a+b)(a-b)=a²-b²

Where a=3 and b=2x

i.e 3²-(2x)²

=9-4x²

Hope it helps you