dsriggsbee dsriggsbee

27-06-2017
Mathematics

contestada

Evaluate 2b2 - 3b + 4a2 for a= -6 & b=8 A. -40 B. 202 C. 248 D. 346

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Banabanana Banabanana

27-06-2017

2b² - 3b + 4a² =
2*(8)² - 3*8 + 4*(-6)² =
2 * 64 - 24 + 4*36 =
128 - 24 + 144 = 248

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texaschic101 texaschic101

27-06-2017

2b^2 - 3b + 4a^2....a = -6, b = 8

2(8^2) - 3(8) + 4(-6^2) =
2(64) - 24 + 4(36) =
128 - 24 + 144 =
248 <==

Answer Link

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