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2 years ago

Use the FOIL method to solve: (x+4)(x-7)

Mathematics

1 answer:

Romashka [77]2 years ago

4 0

X^2+(-7x+4x)-28= X^2-3x-28

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The product of 9 and sum of a number x and 12

mr_godi [17]

Answer:

9(x + 19)

Step-by-step explanation:

Product is a multiplication key word where you'll usually always put parenthesis when multiplying, and where the keyword sum comes you'd add x and 12 for your equation :)

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3 years ago

Abcd is parallelogram with m

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Answer:

...........................................................

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3 years ago

Estimate the surface area of the rectangular prism. A) 28cm B) 32cm C) 64cm

Ede4ka [16]

Answer:

it a

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3 years ago

The sum of three decimal numbers is 6. Exactly one of the numbers is less than 1. What could the numbers be

Temka [501]

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3 years ago

Using substitution x+3y=3 3y-2x=12

frez [133]

Step-by-step explanation:

Given :-

x + 3y = 3
3y - 2x = 12

And we need to solve the equation using Substituting method . So on taking the first equation ,

$\rm\implies x + 3y = 3 \\\\\rm\implies x = 3 - 3y$

Put this value in (ii) :-

$\rm\implies 3y - 2x = 12 \\\\\rm\implies 3y - 2(3-3y)=12\\\\\rm\implies 3y -6-6y = 12 \\\\\rm\implies -3y = 18 \\\\\rm\implies y = -6$

Put this Value in (I) :-

$\\\\\rm\implies x = 3-3*-6 \\\\\rm\implies x = 3+18 \\\\\rm\implies x = 21$

Hence the Value of x is 21 and y is (-6) .

4 0

3 years ago

Read 2 more answers