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2 years ago

Factor the expression -10x^2-41x-21

2 answers:

5 0

$-10x^2-41x-21= -(10x^2+41x+21) =-(10x^2+35x+6x+21)=\\\\=- [(10x^2+35x)+(6x+21 )]=- [5x(2x +7 )+3(2x+7 )]=-(2x+7)(5x+3)$

MArishka [77]2 years ago

5 0

$-10x^2-41x-21=\\
-10x^2-35x-6x-21=\\
-5x(2x+7)-3(2x+7)=\\
-(5x+3)(2x+7)$

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Write three fractions that are equivalent to 3 over 11 , but written in higher terms. One of them must

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Answer:

Three fractions that are equivalent to $\frac{3}{11}$ are: $\frac{6}{22}$ , $\frac{24}{88}$ and $\frac{144}{528}$ .

Step-by-step explanation:

Equivalent fractions are set of fractions in which when simplified, they have the same answer.

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i. multiply both the numerator and denominator of $\frac{6}{22}$ by 4,

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ii. multiply the numerator and denominator of $\frac{24}{88}$ by 6,

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3 years ago

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3 years ago

The width of a rectangle is equal to m cm, but it’s length is five times greater than the width. Find the area of the rectangle.

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Step-by-step explanation:

Given,

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Area of rectangle is $5m^{2}\ cm^{2}$

Keywords: Area, Multiplication, Rectangle.

Learn more about rectangles at:

#LearnwithBrainly

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