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umka2103 [35]
3 years ago
14

Expand 5x(5y + 7) ......

Mathematics
2 answers:
MrMuchimi3 years ago
8 0

Answer:

the answer to this equation 5x*5y + 5x*7

lina2011 [118]3 years ago
3 0

Answer:

25xy + 35x

Step-by-step explanation:

Expand by distributing term.

5x \times 5y + 5x \times 7

Simplify 5x × 5y to 25xy.

25xy + 5x  \times 7

Simplify 5x × 7 to 35x.

25xy + 35x

Hence, the answer is 25xy + 35x.

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Create a matrix that is equal to F+G. The first matrix below is named F and the second matrix below is named G. Name the new mat
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F+G:

F+G=\begin{bmatrix}{-1.8} & {-8.6} & {} \\ {2.85} & {-1.4} & {} \\ {-1.8} & {5.1} & {}\end{bmatrix}+\begin{bmatrix}{1.32} & {-1.9} & {} \\ {2.25} & {0.0} & {} \\ {-6.2} & {1.4} & {}\end{bmatrix}

Then, add the elements that occupy the same position:

H=\begin{bmatrix}{-1.8+1.32} & {-8.6+(-1.9)} & {} \\ {2.85+2.25} & {-1.4+0.0} & {} \\ {-1.8+(-6.2)} & {5.1+1.4} & {}\end{bmatrix}

Solve

H=\begin{bmatrix}{-0.48} & {-10.5} & {} \\ {5.1} & {-1.4} & {} \\ {-8} & {6.5} & {}\end{bmatrix}

So, we find the element at address h31:

H=\begin{bmatrix}{h11} & {h12} & {} \\ {h21} & {h22} & {} \\ {h31} & {h32} & {}\end{bmatrix}

In this case, position h31 is - 8.0

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