Question

expand (2x+3)2 and (3x-5)2​

Answer 1

Step-by-step explanation:

1.4x²+2(2x)(3)+9

4x²+12x+9

2.9x²-2(3x)(5)+25

9x²-30x+25

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Answer 2

Answer:

(2x + 3)² = 4x² + 12x + 9

(3x - 5)² = 9x² - 30x + 25

Identity used:

(a + b)² = a² + 2ab + b²

(a - b)² = a² - 2ab + b²

Step-by-step explanation:

(2x + 3)² = (2x)² + 2(2x)(3) + 3²

             = 4x² + 12x + 9

(3x - 5)² = (3x)² - 2(3x)(5) + 5²

             = 9x² - 30x + 25

Hope it helps!!!