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jeyben [28]
3 years ago
8

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

Mathematics
2 answers:
liubo4ka [24]3 years ago
7 0

Answer:

70x^{2}+30x-140

Step-by-step explanation:

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

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

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

70x^{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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