Question

(8x-7)² - (6x+8)² If you answer this question I will like follow and give you 100 points​

Answer 1

$(8x-7)² - (6x+8)²$

= (8x-7) -(8x-7) -(6x+8)²

= 8x(8x-7)-7(8x-7)- (6x+8)²

64x²-56x-7(8x-7)-(6x+8)²

64x²-56x-56x+49-(6x+8)²

= 64x²-112x+49-(6x+8)²

64x²-112x+49-(6x+8)(6x+8)

refer the Attachment for half answer

Answer 2

Step-by-step explanation:

An object is kept at a distance of 5m in front of a spherical mirror, which forms its erect image at a distance of 2m from the mirror. What is the magnification? Is the mirror concave or convex?

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plz help me in this question