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3 years ago

(7x+3) (10x-14) HELP PLEASE

Mathematics

2 answers:

liubo4ka [24]3 years ago

7 0

Answer:

70 $x^{2}$ +30x-140

Step-by-step explanation:

(7x+3) (10x-14)

70 $x^{2}$ -98+30x-42

70 $x^{2}$ +30x-42-98

70 $x^{2}$ +30x-140

Olin [163]3 years ago

6 0

Answer:

x = 9

Step-by-step explanation:

These are vertical angles, and thus the angles are equal.

7x + 3 = 10x - 24

Combining like terms, we get

27 = 3x, so that x must be 9.

x = 9

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3 years ago

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1 year ago