Question

(a−7)(a+4)−(a+3)(a−6) при a=0,234

Answer 1

Ответ:

Объяснение:

(а-7)(а+4)-(а+3)(а-6), а=0,234

Упростим:

а^2+4a-7a-28-a^2+6a-3a+18= (сокращаем а квадрат и а квадрат, а также -6а и +6а)

Получаем:  0$\neq$10

∅

Answer 2

To evaluate the expression (a−7)(a+4)−(a+3)(a−6) at a=0.234, we substitute the value of a into the expression and perform the calculations.

Let's substitute a=0.234 into the expression:

(0.234−7)(0.234+4)−(0.234+3)(0.234−6)

Now, we simplify the expression using the given value:

(-6.766)(4.234)- (3.234)(-5.766)

Multiply the terms within each parenthesis:

-28.697644 - (-18.656244)

Simplify the subtraction:

-28.697644 + 18.656244

Now, add the terms:

-10.0414

Therefore, when a = 0.234, the expression (a−7)(a+4)−(a+3)(a−6) evaluates to approximately -10.0414.