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3 years ago

Factorisex2 - 7please factorise this

Mathematics

2 answers:

Olenka [21]3 years ago

7 0

Answer:

Step-by-step explanation:

I can help

Step 1

x2 - 7 Factorise

Step 2

x2 - 7 Cannot be factored

Answer

The equation couldnt be factored because of its exponents

Hope this helped

vodomira [7]3 years ago

5 0

Cannot be factored

Hope this helps you

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Solve (x-2<5) u (x+7>6)

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x= | 1 < x < 3

x + 2 < 5 and x - 7 > -6

x < 5 - 2 and x > -6 + 7

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2 years ago

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3 years ago

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3 years ago

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3 years ago

Marion bought 14 packages of plastic frog and lizard fishing lures. She bought frog lures in packages of 4 and lizard lures in p

tatuchka [14]

Answer:

Marion bought 6 frog lures and 8 lizard fishing lures.

Step-by-step explanation:

Let $f$ represent frog lures and $l$ represent lizard lures.

The total packages Marion bought is

$f+l=14...eqn1$

If she bought frog lures in packages of 4 and lizard lures in packages of 6 for a total of 72 lures, then

$4f+6l=72...eqn2$

We make $f$ the subject in equation 1 and put it into equation 2 to get;

$f=14-l...eqn3$

We put equation 3 into equation 2 to get;

$4(14-l)+6l=72$

$\Righttarrow 2(14-l)+3l=36$

We expand the bracket to get;

$28-2l+3l=36$

$-2l+3l=36-28$

$l=8$

We put $l=8$ into equation 3 to get;

$f=14-8$

$f=6$

Therefore Marion bought 6 frog lures and 8 lizard fishing lures.

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2 years ago

Factorisex2 - 7please factorise this​

Factorisex2 - 7please factorise this