Question

Factories : 100 - 49/16a ^2

Answer 1

Step-by-step explanation:

10²-(7/4a)²=(10+7/4a)(10-7/4a)=[(40a+7)(40a-7)]/4a

Answer 2

$\large\huge\blue{\sf{ANSWER}}$

$100 - \frac{49}{16} {a}^{2} = (10 + \frac{7}{4} a)(10 - \frac{7}{4} a)$

Step-by-step explanation:

We know that,

${a}^{2} - {b}^{2} = (a - b)(a + b)$

$100 - \frac{49}{16} {a}^{2} = ( {10})^{2} - ( \frac{7}{4} a)^{2} \\ = (10 + \frac{7}{4} a)(10 - \frac{7}{4} a)$

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