<img src="https://tex.z-dn.net/?f=2%28a%20%2B%205%29%20-%203%28a%20%2B%207%29%20" id="TexFormula1" title="2(a + 5)

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Tom [10]

3 years ago

alt="2(a + 5) - 3(a + 7) " align="absmiddle" class="latex-formula">
how do i simplify it

Mathematics

2 answers:

Kazeer [188]3 years ago

8 0

Answer:

The solutions are given below:

Step-by-step explanation:

x(x-3)+4(x²+2)

= x²-3x+4x²+8

= x²+4x²+8-3x

= 5x²+8-3x

2(a+5)-3(a+7)

= 2a+10-3a-21

= 2a-3a+10-21

= -a-11

xy(x²yz-xy²z+xyz²)

= x³y²z-x²y³z+x²y²z²

-4(a²-2a+8)

= -4a²+8a-32

<h3>Hope it helps !</h3>

Vika [28.1K]3 years ago

6 0

2.2 answer by expanding the brackets
= 2a + 10 - 3a - 21
= -a - 11

2.4 answer
= -4a^2 + 8a - 32

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Answer:

<h2>20 years old.</h2>

Solution,

Let the age of sister be X

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Now,

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Again,

Replacing value,

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vfiekz [6]

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Answer:

a) CP = SP/1.1

b) CP = $59.50

c) GST = $5.95

Step-by-step explanation:

a) Divide by the coefficient of CP.

SP = 1.1×CP

CP = SP/1.1

b) Use the formula with the given value.

CP = $65.45/1.1 = $59.50

c) You can do this two ways: subtract CP from SP, or multiply CP by 0.1.

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3 years ago

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Radda [10]

Answer:

The product will be less than the second factor.

Step-by-step explanation:

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solving to determine the product value

$y=\:\frac{4}{5}\times \:\:1\frac{2}{5}$

$=\frac{4}{5}\times \frac{7}{5}$

$\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{b}\times \frac{c}{d}=\frac{a\:\times \:c}{b\:\times \:d}$

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