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chubhunter [2.5K]
3 years ago
9

Use the binomial squares pattern to multiply (7c²+6)²

Mathematics
1 answer:
SashulF [63]3 years ago
6 0

The solution is 49 c^{4}+84 c^{2}+36

Explanation:

The expression is \left(7 c^{2}+6\right)^{2}

The square of a binomial is always a trinomial.

To determine the square of a binomial we shall use the formula.

The formula to find the square of a binomial is

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

Let us use this formula to multiply the expression \left(7 c^{2}+6\right)^{2}

Here a=7c^{2} and b=6

Substituting the values in the formula, we get,

\left(7 c^{2}+6\right)^{2}=\left(7 c^{2}\right)^{2}+2 \cdot 7 c^{2} \cdot 6+6^{2}

Squaring each term, we have,

\left(7 c^{2}+6\right)^{2}=49 c^{4}+2\cdot 7 c^{2} \cdot 6+36

Multiplying the product of two terms, we get,

\left(7 c^{2}+6\right)^{2}=49 c^{4}+84c^{2}+36

Thus, the solution is 49 c^{4}+84 c^{2}+36

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