Question

(12-d)×12×(12+d)=1620 pls solve this​

Answer 1

Answer:

d = 3

Step-by-step explanation:

We know that,

(a - b)(a + b) = a² - b²

$(12-d)×12×(12+d) = 1620 \\ => (12² - d²)× 12 = 1620 \\ =>( 144 - d²) = \frac{1620}{12} \\ => 144 - d² = 135 \\ => d² = 144 - 135 \\ => d² = 9 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\=> d= \sqrt{9} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:\\ \therefore \: \: \: \: d = 3 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

Answer 2

Answer:

HERE IS UR ATTACHMENT

Step-by-step explanation:

HOPE ITS HELP U

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