Question

4.
${(4.9)}^{2} - {(x)}^{2}$
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Answer 1

Answer:

we know that.....a²-b²=(a+b)(a-b)

• (4.9)²-x²
• (4.9+x)(4.9-x)

Step-by-step explanation:

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Answer 2

${(4.9)^2} - {(x)^2}$

So, this is your question, isn't it?

Answer is over here.

Just apply the formula of ${a^2} - {b^2}$, because it is in that form.

So, the answer will be - ${(4.9 + x) (4.9 - x)}$

The final answer is given above.

Hope it helps.