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4 years ago

List the partial products of 35 times 7

Mathematics

1 answer:

Ipatiy [6.2K]4 years ago

8 0

30 x 7 = 210
<span>5 x 7 = 35

However, if 5 x 7 = 35, 35 will be the product.</span>

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How do I solve this equation and check the solutions?

IgorLugansk [536]

<h3>SOLUTION :-</h3>

<u>By squaring on both sides :</u>

$: \implies \sf {\big( \sqrt{20 - 8x} \:\big)}^{2} = x^2 \\ \\$

$:\implies \sf {20 - 8x} = {x}^{2} \\ \\$

<u>Solving quadratic equation :</u>

$: \implies\sf{ {x}^{2} + 8x - 20 = 0 } \\ \\$

$: \implies\sf{ {x}^{2} + (10 - 2)x - 20 = 0 } \\ \\$

$: \implies\sf{ {x}^{2} + 10x - 2x - 20 = 0 } \\ \\$

$: \implies\sf{ x(x + 10) - 2(x + 10 )= 0 } \\ \\$

$:\implies\sf{( x + 10 )(x - 2)= 0 } \\ \\$

$: \implies\sf x + 10 = 0 \: or \: x - 2 = 0 \\ \\$

$: \implies\sf x = 0 - 10\: or \: x = 0 + 2\\ \\$

$: \implies \underline{\boxed{ \bf{x = - 10 \: or \: x = 2}}}$

$\huge {\therefore}$ The roots of this equation are -10 and 2.

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3 years ago

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What is a synthetic division used for

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3 years ago

Please find out the answer and I will mark your answer as the brain test with a five-star rating and a thank you. But only if th

pentagon [3]

Answer:

Below

Step-by-step explanation:

Let x be that missing number

One third of it is x/3

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Step-by-step explanation:

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3 years ago

What is the equation 3 + p = 8

lana66690 [7]

Answer:

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Step-by-step explanation:

subtract 3 from both sides, cancelling it on the left

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3 years ago

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