Question

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Answer 1

$\sf\pink{ Question :-}$

$(5x + 1) \: (x + 3 ) - 8 = 5(x + 1) \: (x + 2)$

$\bf{\underline\red{Answer}}$

5x(x+3) + 1(x+3) - 8 = (5x + 5) (x+2)

5x²+15x+x+3-8 = (5x+5) (x+2)

5x²+15x+x+3-8 = 5x(x+2) +5(x+2)

⠀5x²+15x+x+3-8 = 5x²+10x +5x+10

⠀ 5x²+16x+3-8 = 5x²+15x+10

⠀ ⠀5x²+16x-5x²-15x = 10-3+8

⠀ ⠀ ⠀ ⠀ (+5x² is cancelled by -5x²)

⠀ ⠀ ⠀ ⠀ ⠀ 16x-15x =18-3

⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ x =15

$hence \\ the \: value \: of \: x = 15$

${\boxed{\bold{\blue{ BE -\: BRAINLY}}}}$

Answer 2

Refer to the attachment and market brainliest